diff --git a/libs/experimental/pyproject.toml b/libs/experimental/pyproject.toml
index 65e7fbfe8a3..89f5b53781b 100644
--- a/libs/experimental/pyproject.toml
+++ b/libs/experimental/pyproject.toml
@@ -92,3 +92,4 @@ markers = [
   "asyncio: mark tests as requiring asyncio",
   "compile: mark placeholder test used to compile integration tests without running them",
 ]
+asyncio_mode = "auto"
diff --git a/libs/experimental/tests/integration_tests/chains/test_synthetic_data_openai.py b/libs/experimental/tests/integration_tests/chains/test_synthetic_data_openai.py
index 7366901b989..3b94e52d08e 100644
--- a/libs/experimental/tests/integration_tests/chains/test_synthetic_data_openai.py
+++ b/libs/experimental/tests/integration_tests/chains/test_synthetic_data_openai.py
@@ -89,7 +89,6 @@ def test_generate_synthetic(synthetic_data_generator: SyntheticDataGenerator) ->
 
 
 @pytest.mark.requires("openai")
-@pytest.mark.asyncio
 async def test_agenerate_synthetic(
     synthetic_data_generator: SyntheticDataGenerator,
 ) -> None:
diff --git a/libs/experimental/tests/unit_tests/chat_models/test_llm_wrapper_llama2chat.py b/libs/experimental/tests/unit_tests/chat_models/test_llm_wrapper_llama2chat.py
index 21a0ae71ccf..2ae184b196c 100644
--- a/libs/experimental/tests/unit_tests/chat_models/test_llm_wrapper_llama2chat.py
+++ b/libs/experimental/tests/unit_tests/chat_models/test_llm_wrapper_llama2chat.py
@@ -68,7 +68,6 @@ def test_configured_system_message(
     assert actual == expected
 
 
-@pytest.mark.asyncio
 async def test_configured_system_message_async(
     model_cfg_sys_msg: Llama2Chat,
 ) -> None:
diff --git a/libs/langchain/pyproject.toml b/libs/langchain/pyproject.toml
index 5ba9b841bf4..f43e45c6c13 100644
--- a/libs/langchain/pyproject.toml
+++ b/libs/langchain/pyproject.toml
@@ -423,6 +423,7 @@ markers = [
   "scheduled: mark tests to run in scheduled testing",
   "compile: mark placeholder test used to compile integration tests without running them"
 ]
+asyncio_mode = "auto"
 
 [tool.codespell]
 skip = '.git,*.pdf,*.svg,*.pdf,*.yaml,*.ipynb,poetry.lock,*.min.js,*.css,package-lock.json,example_data,_dist,examples'
diff --git a/libs/langchain/tests/integration_tests/adapters/test_openai.py b/libs/langchain/tests/integration_tests/adapters/test_openai.py
index 594770742cf..b9279e8952e 100644
--- a/libs/langchain/tests/integration_tests/adapters/test_openai.py
+++ b/libs/langchain/tests/integration_tests/adapters/test_openai.py
@@ -1,7 +1,5 @@
 from typing import Any
 
-import pytest
-
 from langchain.adapters import openai as lcopenai
 
 
@@ -83,7 +81,6 @@ async def _test_module(**kwargs: Any) -> None:
     await _test_astream(stream=True, **kwargs)
 
 
-@pytest.mark.asyncio
 async def test_normal_call() -> None:
     await _test_module(
         messages=[{"role": "user", "content": "hi"}],
@@ -92,7 +89,6 @@ async def test_normal_call() -> None:
     )
 
 
-@pytest.mark.asyncio
 async def test_function_calling() -> None:
     await _test_module(
         messages=[{"role": "user", "content": "whats the weather in boston"}],
@@ -102,7 +98,6 @@ async def test_function_calling() -> None:
     )
 
 
-@pytest.mark.asyncio
 async def test_answer_with_function_calling() -> None:
     await _test_module(
         messages=[
diff --git a/libs/langchain/tests/integration_tests/callbacks/test_langchain_tracer.py b/libs/langchain/tests/integration_tests/callbacks/test_langchain_tracer.py
index 4a26ff733d0..8605e8419ed 100644
--- a/libs/langchain/tests/integration_tests/callbacks/test_langchain_tracer.py
+++ b/libs/langchain/tests/integration_tests/callbacks/test_langchain_tracer.py
@@ -2,7 +2,6 @@
 import asyncio
 import os
 
-import pytest
 from aiohttp import ClientSession
 from langchain_core.prompts import PromptTemplate
 
@@ -66,7 +65,6 @@ def test_tracing_session_env_var() -> None:
         del os.environ["LANGCHAIN_SESSION"]
 
 
-@pytest.mark.asyncio
 async def test_tracing_concurrent() -> None:
     os.environ["LANGCHAIN_TRACING"] = "true"
     aiosession = ClientSession()
@@ -80,7 +78,6 @@ async def test_tracing_concurrent() -> None:
     await aiosession.close()
 
 
-@pytest.mark.asyncio
 async def test_tracing_concurrent_bw_compat_environ() -> None:
     os.environ["LANGCHAIN_HANDLER"] = "langchain"
     if "LANGCHAIN_TRACING" in os.environ:
@@ -113,7 +110,6 @@ def test_tracing_context_manager() -> None:
     agent.run(questions[0])  # this should not be traced
 
 
-@pytest.mark.asyncio
 async def test_tracing_context_manager_async() -> None:
     llm = OpenAI(temperature=0)
     async_tools = load_tools(["llm-math", "serpapi"], llm=llm)
@@ -133,7 +129,6 @@ async def test_tracing_context_manager_async() -> None:
     await task
 
 
-@pytest.mark.asyncio
 async def test_tracing_v2_environment_variable() -> None:
     os.environ["LANGCHAIN_TRACING_V2"] = "true"
 
@@ -196,7 +191,6 @@ def test_tracing_v2_agent_with_metadata() -> None:
     chat_agent.run(questions[0], tags=["a-tag"], metadata={"a": "b", "c": "d"})
 
 
-@pytest.mark.asyncio
 async def test_tracing_v2_async_agent_with_metadata() -> None:
     os.environ["LANGCHAIN_TRACING_V2"] = "true"
     llm = OpenAI(temperature=0, metadata={"f": "g", "h": "i"})
@@ -256,7 +250,6 @@ def test_trace_as_group_with_env_set() -> None:
         group_manager.on_chain_end({"output": final_res})
 
 
-@pytest.mark.asyncio
 async def test_trace_as_group_async() -> None:
     llm = OpenAI(temperature=0.9)
     prompt = PromptTemplate(
diff --git a/libs/langchain/tests/integration_tests/callbacks/test_openai_callback.py b/libs/langchain/tests/integration_tests/callbacks/test_openai_callback.py
index e32dbaa0472..e2bef107b45 100644
--- a/libs/langchain/tests/integration_tests/callbacks/test_openai_callback.py
+++ b/libs/langchain/tests/integration_tests/callbacks/test_openai_callback.py
@@ -1,14 +1,11 @@
 """Integration tests for the langchain tracer module."""
 import asyncio
 
-import pytest
-
 from langchain.agents import AgentType, initialize_agent, load_tools
 from langchain.callbacks import get_openai_callback
 from langchain.llms import OpenAI
 
 
-@pytest.mark.asyncio
 async def test_openai_callback() -> None:
     llm = OpenAI(temperature=0)
     with get_openai_callback() as cb:
diff --git a/libs/langchain/tests/integration_tests/callbacks/test_wandb_tracer.py b/libs/langchain/tests/integration_tests/callbacks/test_wandb_tracer.py
index 248d877e48b..ec5a5791f2d 100644
--- a/libs/langchain/tests/integration_tests/callbacks/test_wandb_tracer.py
+++ b/libs/langchain/tests/integration_tests/callbacks/test_wandb_tracer.py
@@ -2,7 +2,6 @@
 import asyncio
 import os
 
-import pytest
 from aiohttp import ClientSession
 
 from langchain.agents import AgentType, initialize_agent, load_tools
@@ -60,7 +59,6 @@ def test_tracing_session_env_var() -> None:
     agent.run(questions[0])
 
 
-@pytest.mark.asyncio
 async def test_tracing_concurrent() -> None:
     os.environ["LANGCHAIN_WANDB_TRACING"] = "true"
     aiosession = ClientSession()
@@ -95,7 +93,6 @@ def test_tracing_context_manager() -> None:
     agent.run(questions[0])  # this should not be traced
 
 
-@pytest.mark.asyncio
 async def test_tracing_context_manager_async() -> None:
     llm = OpenAI(temperature=0)
     async_tools = load_tools(
diff --git a/libs/langchain/tests/integration_tests/chat_models/test_anthropic.py b/libs/langchain/tests/integration_tests/chat_models/test_anthropic.py
index 96f70e67d0f..ef632e8b195 100644
--- a/libs/langchain/tests/integration_tests/chat_models/test_anthropic.py
+++ b/libs/langchain/tests/integration_tests/chat_models/test_anthropic.py
@@ -66,7 +66,6 @@ def test_anthropic_streaming_callback() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_anthropic_async_streaming_callback() -> None:
     """Test that streaming correctly invokes on_llm_new_token callback."""
     callback_handler = FakeCallbackHandler()
diff --git a/libs/langchain/tests/integration_tests/chat_models/test_azure_openai.py b/libs/langchain/tests/integration_tests/chat_models/test_azure_openai.py
index 8f5565483c9..6af1d4606c1 100644
--- a/libs/langchain/tests/integration_tests/chat_models/test_azure_openai.py
+++ b/libs/langchain/tests/integration_tests/chat_models/test_azure_openai.py
@@ -122,7 +122,6 @@ def test_chat_openai_streaming_generation_info() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_async_chat_openai() -> None:
     """Test async generation."""
     chat = _get_llm(max_tokens=10, n=2)
@@ -139,7 +138,6 @@ async def test_async_chat_openai() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_async_chat_openai_streaming() -> None:
     """Test that streaming correctly invokes on_llm_new_token callback."""
     callback_handler = FakeCallbackHandler()
@@ -173,7 +171,6 @@ def test_openai_streaming(llm: AzureChatOpenAI) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_astream(llm: AzureChatOpenAI) -> None:
     """Test streaming tokens from OpenAI."""
     async for token in llm.astream("I'm Pickle Rick"):
@@ -181,7 +178,6 @@ async def test_openai_astream(llm: AzureChatOpenAI) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_abatch(llm: AzureChatOpenAI) -> None:
     """Test streaming tokens from AzureChatOpenAI."""
 
@@ -191,7 +187,6 @@ async def test_openai_abatch(llm: AzureChatOpenAI) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_abatch_tags(llm: AzureChatOpenAI) -> None:
     """Test batch tokens from AzureChatOpenAI."""
 
@@ -212,7 +207,6 @@ def test_openai_batch(llm: AzureChatOpenAI) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_ainvoke(llm: AzureChatOpenAI) -> None:
     """Test invoke tokens from AzureChatOpenAI."""
 
diff --git a/libs/langchain/tests/integration_tests/chat_models/test_bedrock.py b/libs/langchain/tests/integration_tests/chat_models/test_bedrock.py
index e85fb3815fb..2b53ceaa33c 100644
--- a/libs/langchain/tests/integration_tests/chat_models/test_bedrock.py
+++ b/libs/langchain/tests/integration_tests/chat_models/test_bedrock.py
@@ -92,7 +92,6 @@ def test_bedrock_streaming(chat: BedrockChat) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_bedrock_astream(chat: BedrockChat) -> None:
     """Test streaming tokens from OpenAI."""
 
@@ -101,7 +100,6 @@ async def test_bedrock_astream(chat: BedrockChat) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_bedrock_abatch(chat: BedrockChat) -> None:
     """Test streaming tokens from BedrockChat."""
     result = await chat.abatch(["I'm Pickle Rick", "I'm not Pickle Rick"])
@@ -110,7 +108,6 @@ async def test_bedrock_abatch(chat: BedrockChat) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_bedrock_abatch_tags(chat: BedrockChat) -> None:
     """Test batch tokens from BedrockChat."""
     result = await chat.abatch(
@@ -129,7 +126,6 @@ def test_bedrock_batch(chat: BedrockChat) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_bedrock_ainvoke(chat: BedrockChat) -> None:
     """Test invoke tokens from BedrockChat."""
     result = await chat.ainvoke("I'm Pickle Rick", config={"tags": ["foo"]})
diff --git a/libs/langchain/tests/integration_tests/chat_models/test_fireworks.py b/libs/langchain/tests/integration_tests/chat_models/test_fireworks.py
index b8d96f004a9..55b11499584 100644
--- a/libs/langchain/tests/integration_tests/chat_models/test_fireworks.py
+++ b/libs/langchain/tests/integration_tests/chat_models/test_fireworks.py
@@ -90,7 +90,6 @@ def test_fireworks_invoke(chat: ChatFireworks) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_fireworks_ainvoke(chat: ChatFireworks) -> None:
     """Tests chat completion with invoke"""
     result = await chat.ainvoke("How is the weather in New York today?", stop=[","])
@@ -119,7 +118,6 @@ def test_fireworks_batch(chat: ChatFireworks) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_fireworks_abatch(chat: ChatFireworks) -> None:
     """Test batch tokens from ChatFireworks."""
     result = await chat.abatch(
@@ -159,7 +157,6 @@ def test_fireworks_streaming_stop_words(chat: ChatFireworks) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_chat_fireworks_agenerate() -> None:
     """Test ChatFireworks wrapper with generate."""
     chat = ChatFireworks(model_kwargs={"n": 2})
@@ -176,7 +173,6 @@ async def test_chat_fireworks_agenerate() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_fireworks_astream(chat: ChatFireworks) -> None:
     """Test streaming tokens from Fireworks."""
 
diff --git a/libs/langchain/tests/integration_tests/chat_models/test_google_palm.py b/libs/langchain/tests/integration_tests/chat_models/test_google_palm.py
index efb4320bc29..25a0151b355 100644
--- a/libs/langchain/tests/integration_tests/chat_models/test_google_palm.py
+++ b/libs/langchain/tests/integration_tests/chat_models/test_google_palm.py
@@ -4,7 +4,6 @@ Note: This test must be run with the GOOGLE_API_KEY environment variable set to
       valid API key.
 """
 
-import pytest
 from langchain_core.schema import (
     ChatGeneration,
     ChatResult,
@@ -63,7 +62,6 @@ def test_chat_google_palm_multiple_completions() -> None:
         assert isinstance(generation.message.content, str)
 
 
-@pytest.mark.asyncio
 async def test_async_chat_google_palm() -> None:
     """Test async generation."""
     chat = ChatGooglePalm(n=2, temperature=1.0)
diff --git a/libs/langchain/tests/integration_tests/chat_models/test_jinachat.py b/libs/langchain/tests/integration_tests/chat_models/test_jinachat.py
index fee3b53cadb..f2d9c7cae57 100644
--- a/libs/langchain/tests/integration_tests/chat_models/test_jinachat.py
+++ b/libs/langchain/tests/integration_tests/chat_models/test_jinachat.py
@@ -66,7 +66,6 @@ def test_jinachat_streaming() -> None:
     assert isinstance(response, BaseMessage)
 
 
-@pytest.mark.asyncio
 async def test_async_jinachat() -> None:
     """Test async generation."""
     chat = JinaChat(max_tokens=102)
@@ -82,7 +81,6 @@ async def test_async_jinachat() -> None:
             assert generation.text == generation.message.content
 
 
-@pytest.mark.asyncio
 async def test_async_jinachat_streaming() -> None:
     """Test that streaming correctly invokes on_llm_new_token callback."""
     callback_handler = FakeCallbackHandler()
diff --git a/libs/langchain/tests/integration_tests/chat_models/test_openai.py b/libs/langchain/tests/integration_tests/chat_models/test_openai.py
index 47c9a8e2d5c..a036c717c03 100644
--- a/libs/langchain/tests/integration_tests/chat_models/test_openai.py
+++ b/libs/langchain/tests/integration_tests/chat_models/test_openai.py
@@ -169,7 +169,6 @@ def test_chat_openai_invalid_streaming_params() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_async_chat_openai() -> None:
     """Test async generation."""
     chat = ChatOpenAI(max_tokens=10, n=2)
@@ -188,7 +187,6 @@ async def test_async_chat_openai() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_async_chat_openai_streaming() -> None:
     """Test that streaming correctly invokes on_llm_new_token callback."""
     callback_handler = FakeCallbackHandler()
@@ -214,7 +212,6 @@ async def test_async_chat_openai_streaming() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_async_chat_openai_streaming_with_function() -> None:
     """Test ChatOpenAI wrapper with multiple completions."""
 
@@ -316,7 +313,6 @@ async def test_async_chat_openai_streaming_with_function() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_async_chat_openai_bind_functions() -> None:
     """Test ChatOpenAI wrapper with multiple completions."""
 
@@ -389,7 +385,6 @@ def test_openai_streaming() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_astream() -> None:
     """Test streaming tokens from OpenAI."""
     llm = ChatOpenAI(max_tokens=10)
@@ -399,7 +394,6 @@ async def test_openai_astream() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_abatch() -> None:
     """Test streaming tokens from ChatOpenAI."""
     llm = ChatOpenAI(max_tokens=10)
@@ -410,7 +404,6 @@ async def test_openai_abatch() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_abatch_tags() -> None:
     """Test batch tokens from ChatOpenAI."""
     llm = ChatOpenAI(max_tokens=10)
@@ -433,7 +426,6 @@ def test_openai_batch() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_ainvoke() -> None:
     """Test invoke tokens from ChatOpenAI."""
     llm = ChatOpenAI(max_tokens=10)
diff --git a/libs/langchain/tests/integration_tests/chat_models/test_promptlayer_openai.py b/libs/langchain/tests/integration_tests/chat_models/test_promptlayer_openai.py
index 6e311482637..f993c6a22ff 100644
--- a/libs/langchain/tests/integration_tests/chat_models/test_promptlayer_openai.py
+++ b/libs/langchain/tests/integration_tests/chat_models/test_promptlayer_openai.py
@@ -87,7 +87,6 @@ def test_promptlayer_chat_openai_invalid_streaming_params() -> None:
         )
 
 
-@pytest.mark.asyncio
 async def test_async_promptlayer_chat_openai() -> None:
     """Test async generation."""
     chat = PromptLayerChatOpenAI(max_tokens=10, n=2)
@@ -103,7 +102,6 @@ async def test_async_promptlayer_chat_openai() -> None:
             assert generation.text == generation.message.content
 
 
-@pytest.mark.asyncio
 async def test_async_promptlayer_chat_openai_streaming() -> None:
     """Test that streaming correctly invokes on_llm_new_token callback."""
     callback_handler = FakeCallbackHandler()
diff --git a/libs/langchain/tests/integration_tests/chat_models/test_vertexai.py b/libs/langchain/tests/integration_tests/chat_models/test_vertexai.py
index 351e3a9f4de..cc91d522677 100644
--- a/libs/langchain/tests/integration_tests/chat_models/test_vertexai.py
+++ b/libs/langchain/tests/integration_tests/chat_models/test_vertexai.py
@@ -51,7 +51,6 @@ def test_candidates() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_vertexai_agenerate() -> None:
     model = ChatVertexAI(temperature=0)
     message = HumanMessage(content="Hello")
diff --git a/libs/langchain/tests/integration_tests/document_loaders/test_recursive_url_loader.py b/libs/langchain/tests/integration_tests/document_loaders/test_recursive_url_loader.py
index d1faf40d7fc..bbfc5586134 100644
--- a/libs/langchain/tests/integration_tests/document_loaders/test_recursive_url_loader.py
+++ b/libs/langchain/tests/integration_tests/document_loaders/test_recursive_url_loader.py
@@ -1,9 +1,6 @@
-import pytest as pytest
-
 from langchain.document_loaders.recursive_url_loader import RecursiveUrlLoader
 
 
-@pytest.mark.asyncio
 def test_async_recursive_url_loader() -> None:
     url = "https://docs.python.org/3.9/"
     loader = RecursiveUrlLoader(
@@ -19,7 +16,6 @@ def test_async_recursive_url_loader() -> None:
     assert docs[0].page_content == "placeholder"
 
 
-@pytest.mark.asyncio
 def test_async_recursive_url_loader_deterministic() -> None:
     url = "https://docs.python.org/3.9/"
     loader = RecursiveUrlLoader(
@@ -43,7 +39,6 @@ def test_sync_recursive_url_loader() -> None:
     assert docs[0].page_content == "placeholder"
 
 
-@pytest.mark.asyncio
 def test_sync_async_equivalent() -> None:
     url = "https://docs.python.org/3.9/"
     loader = RecursiveUrlLoader(url, use_async=False, max_depth=2)
diff --git a/libs/langchain/tests/integration_tests/document_loaders/test_url_playwright.py b/libs/langchain/tests/integration_tests/document_loaders/test_url_playwright.py
index eb53682d75b..22e0cac01ab 100644
--- a/libs/langchain/tests/integration_tests/document_loaders/test_url_playwright.py
+++ b/libs/langchain/tests/integration_tests/document_loaders/test_url_playwright.py
@@ -1,8 +1,6 @@
 """Tests for the Playwright URL loader"""
 from typing import TYPE_CHECKING
 
-import pytest
-
 from langchain.document_loaders import PlaywrightURLLoader
 from langchain.document_loaders.url_playwright import PlaywrightEvaluator
 
@@ -43,7 +41,6 @@ def test_playwright_url_loader() -> None:
     assert len(docs) > 0
 
 
-@pytest.mark.asyncio
 async def test_playwright_async_url_loader() -> None:
     """Test Playwright async URL loader."""
     urls = [
@@ -76,7 +73,6 @@ def test_playwright_url_loader_with_custom_evaluator() -> None:
     assert docs[0].page_content == "test"
 
 
-@pytest.mark.asyncio
 async def test_playwright_async_url_loader_with_custom_evaluator() -> None:
     """Test Playwright async URL loader with a custom evaluator."""
     urls = ["https://www.youtube.com/watch?v=dQw4w9WgXcQ"]
diff --git a/libs/langchain/tests/integration_tests/embeddings/test_azure_openai.py b/libs/langchain/tests/integration_tests/embeddings/test_azure_openai.py
index 2987ecba03b..45f5b48d39a 100644
--- a/libs/langchain/tests/integration_tests/embeddings/test_azure_openai.py
+++ b/libs/langchain/tests/integration_tests/embeddings/test_azure_openai.py
@@ -49,7 +49,6 @@ def test_azure_openai_embedding_documents_chunk_size() -> None:
     assert all([len(out) == 1536 for out in output])
 
 
-@pytest.mark.asyncio
 async def test_azure_openai_embedding_documents_async_multiple() -> None:
     """Test openai embeddings."""
     documents = ["foo bar", "bar foo", "foo"]
@@ -70,7 +69,6 @@ def test_azure_openai_embedding_query() -> None:
     assert len(output) == 1536
 
 
-@pytest.mark.asyncio
 async def test_azure_openai_embedding_async_query() -> None:
     """Test openai embeddings."""
     document = "foo bar"
diff --git a/libs/langchain/tests/integration_tests/embeddings/test_fastembed.py b/libs/langchain/tests/integration_tests/embeddings/test_fastembed.py
index 84e4ea67fe8..d690037ab77 100644
--- a/libs/langchain/tests/integration_tests/embeddings/test_fastembed.py
+++ b/libs/langchain/tests/integration_tests/embeddings/test_fastembed.py
@@ -38,7 +38,6 @@ def test_fastembed_embedding_query(model_name: str, max_length: int) -> None:
     assert len(output) == 384
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize(
     "model_name", ["sentence-transformers/all-MiniLM-L6-v2", "BAAI/bge-small-en-v1.5"]
 )
@@ -61,7 +60,6 @@ async def test_fastembed_async_embedding_documents(
     assert len(output[0]) == 384
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize(
     "model_name", ["sentence-transformers/all-MiniLM-L6-v2", "BAAI/bge-small-en-v1.5"]
 )
diff --git a/libs/langchain/tests/integration_tests/embeddings/test_openai.py b/libs/langchain/tests/integration_tests/embeddings/test_openai.py
index 33dd46fa5ac..8fab5789ccf 100644
--- a/libs/langchain/tests/integration_tests/embeddings/test_openai.py
+++ b/libs/langchain/tests/integration_tests/embeddings/test_openai.py
@@ -29,7 +29,6 @@ def test_openai_embedding_documents_multiple() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_embedding_documents_async_multiple() -> None:
     """Test openai embeddings."""
     documents = ["foo bar", "bar foo", "foo"]
@@ -52,7 +51,6 @@ def test_openai_embedding_query() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_embedding_async_query() -> None:
     """Test openai embeddings."""
     document = "foo bar"
diff --git a/libs/langchain/tests/integration_tests/llms/test_anthropic.py b/libs/langchain/tests/integration_tests/llms/test_anthropic.py
index f95d35000ca..95c82b900a3 100644
--- a/libs/langchain/tests/integration_tests/llms/test_anthropic.py
+++ b/libs/langchain/tests/integration_tests/llms/test_anthropic.py
@@ -52,7 +52,6 @@ def test_anthropic_streaming_callback() -> None:
     assert callback_handler.llm_streams > 1
 
 
-@pytest.mark.asyncio
 async def test_anthropic_async_generate() -> None:
     """Test async generate."""
     llm = Anthropic()
@@ -60,7 +59,6 @@ async def test_anthropic_async_generate() -> None:
     assert isinstance(output, LLMResult)
 
 
-@pytest.mark.asyncio
 async def test_anthropic_async_streaming_callback() -> None:
     """Test that streaming correctly invokes on_llm_new_token callback."""
     callback_handler = FakeCallbackHandler()
diff --git a/libs/langchain/tests/integration_tests/llms/test_azure_openai.py b/libs/langchain/tests/integration_tests/llms/test_azure_openai.py
index 3c66c1b36be..6aac97e483b 100644
--- a/libs/langchain/tests/integration_tests/llms/test_azure_openai.py
+++ b/libs/langchain/tests/integration_tests/llms/test_azure_openai.py
@@ -57,7 +57,6 @@ def test_openai_streaming(llm: AzureOpenAI) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_astream(llm: AzureOpenAI) -> None:
     """Test streaming tokens from AzureOpenAI."""
     async for token in llm.astream("I'm Pickle Rick"):
@@ -65,7 +64,6 @@ async def test_openai_astream(llm: AzureOpenAI) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_abatch(llm: AzureOpenAI) -> None:
     """Test streaming tokens from AzureOpenAI."""
     result = await llm.abatch(["I'm Pickle Rick", "I'm not Pickle Rick"])
@@ -73,7 +71,6 @@ async def test_openai_abatch(llm: AzureOpenAI) -> None:
         assert isinstance(token, str)
 
 
-@pytest.mark.asyncio
 async def test_openai_abatch_tags(llm: AzureOpenAI) -> None:
     """Test streaming tokens from AzureOpenAI."""
     result = await llm.abatch(
@@ -92,7 +89,6 @@ def test_openai_batch(llm: AzureOpenAI) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_ainvoke(llm: AzureOpenAI) -> None:
     """Test streaming tokens from AzureOpenAI."""
     result = await llm.ainvoke("I'm Pickle Rick", config={"tags": ["foo"]})
@@ -157,7 +153,6 @@ def test_openai_streaming_callback() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_async_generate() -> None:
     """Test async generation."""
     llm = _get_llm(max_tokens=10)
@@ -165,7 +160,6 @@ async def test_openai_async_generate() -> None:
     assert isinstance(output, LLMResult)
 
 
-@pytest.mark.asyncio
 async def test_openai_async_streaming_callback() -> None:
     """Test that streaming correctly invokes on_llm_new_token callback."""
     callback_handler = FakeCallbackHandler()
diff --git a/libs/langchain/tests/integration_tests/llms/test_ctransformers.py b/libs/langchain/tests/integration_tests/llms/test_ctransformers.py
index 2ed4c091318..dddc93009d3 100644
--- a/libs/langchain/tests/integration_tests/llms/test_ctransformers.py
+++ b/libs/langchain/tests/integration_tests/llms/test_ctransformers.py
@@ -1,5 +1,4 @@
 """Test C Transformers wrapper."""
-import pytest
 
 from langchain.llms import CTransformers
 from tests.unit_tests.callbacks.fake_callback_handler import FakeCallbackHandler
@@ -22,7 +21,6 @@ def test_ctransformers_call() -> None:
     assert 0 < callback_handler.llm_streams <= config["max_new_tokens"]
 
 
-@pytest.mark.asyncio
 async def test_ctransformers_async_inference() -> None:
     config = {"max_new_tokens": 5}
     callback_handler = FakeCallbackHandler()
diff --git a/libs/langchain/tests/integration_tests/llms/test_deepinfra.py b/libs/langchain/tests/integration_tests/llms/test_deepinfra.py
index 4b3a303bc7c..74f05da90aa 100644
--- a/libs/langchain/tests/integration_tests/llms/test_deepinfra.py
+++ b/libs/langchain/tests/integration_tests/llms/test_deepinfra.py
@@ -1,6 +1,4 @@
 """Test DeepInfra API wrapper."""
-import pytest
-
 from langchain.llms.deepinfra import DeepInfra
 
 
@@ -11,7 +9,6 @@ def test_deepinfra_call() -> None:
     assert isinstance(output, str)
 
 
-@pytest.mark.asyncio
 async def test_deepinfra_acall() -> None:
     llm = DeepInfra(model_id="meta-llama/Llama-2-7b-chat-hf")
     output = await llm.apredict("What is 2 + 2?")
@@ -27,7 +24,6 @@ def test_deepinfra_stream() -> None:
     assert num_chunks > 0
 
 
-@pytest.mark.asyncio
 async def test_deepinfra_astream() -> None:
     llm = DeepInfra(model_id="meta-llama/Llama-2-7b-chat-hf")
     num_chunks = 0
diff --git a/libs/langchain/tests/integration_tests/llms/test_fireworks.py b/libs/langchain/tests/integration_tests/llms/test_fireworks.py
index 9abf445bf21..81bcfecfcb0 100644
--- a/libs/langchain/tests/integration_tests/llms/test_fireworks.py
+++ b/libs/langchain/tests/integration_tests/llms/test_fireworks.py
@@ -61,7 +61,6 @@ def test_fireworks_invoke(llm: Fireworks) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_fireworks_ainvoke(llm: Fireworks) -> None:
     """Tests completion with invoke"""
     output = await llm.ainvoke("How is the weather in New York today?", stop=[","])
@@ -89,7 +88,6 @@ def test_fireworks_batch(llm: Fireworks) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_fireworks_abatch(llm: Fireworks) -> None:
     """Tests completion with invoke"""
     output = await llm.abatch(
@@ -142,7 +140,6 @@ def test_fireworks_streaming_stop_words(llm: Fireworks) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_fireworks_streaming_async(llm: Fireworks) -> None:
     """Test stream completion."""
 
@@ -156,7 +153,6 @@ async def test_fireworks_streaming_async(llm: Fireworks) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_fireworks_async_agenerate(llm: Fireworks) -> None:
     """Test async."""
     output = await llm.agenerate(["What is the best city to live in California?"])
@@ -164,7 +160,6 @@ async def test_fireworks_async_agenerate(llm: Fireworks) -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_fireworks_multiple_prompts_async_agenerate(llm: Fireworks) -> None:
     output = await llm.agenerate(
         ["How is the weather in New York today?", "I'm pickle rick"]
diff --git a/libs/langchain/tests/integration_tests/llms/test_openai.py b/libs/langchain/tests/integration_tests/llms/test_openai.py
index a0f2981620b..588ea601cef 100644
--- a/libs/langchain/tests/integration_tests/llms/test_openai.py
+++ b/libs/langchain/tests/integration_tests/llms/test_openai.py
@@ -100,7 +100,6 @@ def test_openai_streaming() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_astream() -> None:
     """Test streaming tokens from OpenAI."""
     llm = OpenAI(max_tokens=10)
@@ -110,7 +109,6 @@ async def test_openai_astream() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_abatch() -> None:
     """Test streaming tokens from OpenAI."""
     llm = OpenAI(max_tokens=10)
@@ -120,7 +118,6 @@ async def test_openai_abatch() -> None:
         assert isinstance(token, str)
 
 
-@pytest.mark.asyncio
 async def test_openai_abatch_tags() -> None:
     """Test streaming tokens from OpenAI."""
     llm = OpenAI(max_tokens=10)
@@ -143,7 +140,6 @@ def test_openai_batch() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_ainvoke() -> None:
     """Test streaming tokens from OpenAI."""
     llm = OpenAI(max_tokens=10)
@@ -213,7 +209,6 @@ def test_openai_streaming_callback() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_openai_async_generate() -> None:
     """Test async generation."""
     llm = OpenAI(max_tokens=10)
@@ -221,7 +216,6 @@ async def test_openai_async_generate() -> None:
     assert isinstance(output, LLMResult)
 
 
-@pytest.mark.asyncio
 async def test_openai_async_streaming_callback() -> None:
     """Test that streaming correctly invokes on_llm_new_token callback."""
     callback_handler = FakeCallbackHandler()
diff --git a/libs/langchain/tests/integration_tests/llms/test_qianfan_endpoint.py b/libs/langchain/tests/integration_tests/llms/test_qianfan_endpoint.py
index 9c87dd95e5f..e46a6342a00 100644
--- a/libs/langchain/tests/integration_tests/llms/test_qianfan_endpoint.py
+++ b/libs/langchain/tests/integration_tests/llms/test_qianfan_endpoint.py
@@ -1,7 +1,6 @@
 """Test Baidu Qianfan LLM Endpoint."""
 from typing import Generator
 
-import pytest
 from langchain_core.schema import LLMResult
 
 from langchain.llms.baidu_qianfan_endpoint import QianfanLLMEndpoint
@@ -29,7 +28,6 @@ def test_generate_stream() -> None:
     assert isinstance(output, Generator)
 
 
-@pytest.mark.asyncio
 async def test_qianfan_aio() -> None:
     llm = QianfanLLMEndpoint(streaming=True)
 
diff --git a/libs/langchain/tests/integration_tests/llms/test_together.py b/libs/langchain/tests/integration_tests/llms/test_together.py
index ca88c6c8614..659ce9fff3e 100644
--- a/libs/langchain/tests/integration_tests/llms/test_together.py
+++ b/libs/langchain/tests/integration_tests/llms/test_together.py
@@ -24,7 +24,6 @@ def test_together_call() -> None:
     assert isinstance(output, str)
 
 
-@pytest.mark.asyncio
 async def test_together_acall() -> None:
     """Test simple call to together."""
     llm = Together(
diff --git a/libs/langchain/tests/integration_tests/llms/test_vertexai.py b/libs/langchain/tests/integration_tests/llms/test_vertexai.py
index fdf55c9383b..a89d299c0ae 100644
--- a/libs/langchain/tests/integration_tests/llms/test_vertexai.py
+++ b/libs/langchain/tests/integration_tests/llms/test_vertexai.py
@@ -49,7 +49,6 @@ def test_vertex_generate_code() -> None:
 
 
 @pytest.mark.scheduled
-@pytest.mark.asyncio
 async def test_vertex_agenerate() -> None:
     llm = VertexAI(temperature=0)
     output = await llm.agenerate(["Please say foo:"])
@@ -63,7 +62,6 @@ def test_vertex_stream() -> None:
     assert isinstance(outputs[0], str)
 
 
-@pytest.mark.asyncio
 async def test_vertex_consistency() -> None:
     llm = VertexAI(temperature=0)
     output = llm.generate(["Please say foo:"])
@@ -103,7 +101,6 @@ def test_model_garden_generate() -> None:
     assert len(output.generations) == 2
 
 
-@pytest.mark.asyncio
 async def test_model_garden_agenerate() -> None:
     endpoint_id = os.environ["ENDPOINT_ID"]
     project = os.environ["PROJECT"]
diff --git a/libs/langchain/tests/integration_tests/retrievers/test_azure_cognitive_search.py b/libs/langchain/tests/integration_tests/retrievers/test_azure_cognitive_search.py
index 0c7af90ee49..84694415ff5 100644
--- a/libs/langchain/tests/integration_tests/retrievers/test_azure_cognitive_search.py
+++ b/libs/langchain/tests/integration_tests/retrievers/test_azure_cognitive_search.py
@@ -1,5 +1,4 @@
 """Test Azure Cognitive Search wrapper."""
-import pytest
 from langchain_core.schema import Document
 
 from langchain.retrievers.azure_cognitive_search import AzureCognitiveSearchRetriever
@@ -18,7 +17,6 @@ def test_azure_cognitive_search_get_relevant_documents() -> None:
     assert len(documents) <= 1
 
 
-@pytest.mark.asyncio
 async def test_azure_cognitive_search_aget_relevant_documents() -> None:
     """Test valid async call to Azure Cognitive Search."""
     retriever = AzureCognitiveSearchRetriever()
diff --git a/libs/langchain/tests/integration_tests/retrievers/test_zep.py b/libs/langchain/tests/integration_tests/retrievers/test_zep.py
index f989c66951a..1864799750b 100644
--- a/libs/langchain/tests/integration_tests/retrievers/test_zep.py
+++ b/libs/langchain/tests/integration_tests/retrievers/test_zep.py
@@ -83,7 +83,6 @@ def test_zep_retriever_get_relevant_documents(
 
 
 @pytest.mark.requires("zep_python")
-@pytest.mark.asyncio
 async def test_zep_retriever_aget_relevant_documents(
     zep_retriever: ZepRetriever, search_results: List[MemorySearchResult]
 ) -> None:
diff --git a/libs/langchain/tests/integration_tests/smith/evaluation/test_runner_utils.py b/libs/langchain/tests/integration_tests/smith/evaluation/test_runner_utils.py
index 231828d3aab..6cd52ef15e6 100644
--- a/libs/langchain/tests/integration_tests/smith/evaluation/test_runner_utils.py
+++ b/libs/langchain/tests/integration_tests/smith/evaluation/test_runner_utils.py
@@ -460,7 +460,6 @@ def test_chain_on_kv_singleio_dataset(
     _check_all_feedback_passed(eval_project_name, client)
 
 
-@pytest.mark.asyncio
 async def test_runnable_on_kv_singleio_dataset(
     kv_singleio_dataset_name: str, eval_project_name: str, client: Client
 ) -> None:
@@ -480,7 +479,6 @@ async def test_runnable_on_kv_singleio_dataset(
     _check_all_feedback_passed(eval_project_name, client)
 
 
-@pytest.mark.asyncio
 async def test_arb_func_on_kv_singleio_dataset(
     kv_singleio_dataset_name: str, eval_project_name: str, client: Client
 ) -> None:
diff --git a/libs/langchain/tests/integration_tests/test_nuclia_transformer.py b/libs/langchain/tests/integration_tests/test_nuclia_transformer.py
index 6e803ac6bc1..a82390a59a8 100644
--- a/libs/langchain/tests/integration_tests/test_nuclia_transformer.py
+++ b/libs/langchain/tests/integration_tests/test_nuclia_transformer.py
@@ -3,7 +3,6 @@ import json
 from typing import Any
 from unittest import mock
 
-import pytest
 from langchain_core.schema.document import Document
 
 from langchain.document_transformers.nuclia_text_transform import NucliaTextTransformer
@@ -33,7 +32,6 @@ def fakerun(**args: Any) -> Any:
     return run
 
 
-@pytest.mark.asyncio
 async def test_nuclia_loader() -> None:
     with mock.patch(
         "langchain.tools.nuclia.tool.NucliaUnderstandingAPI._arun", new_callable=fakerun
diff --git a/libs/langchain/tests/integration_tests/tools/nuclia/test_nuclia.py b/libs/langchain/tests/integration_tests/tools/nuclia/test_nuclia.py
index fddcf368ff9..aed1a26e2e2 100644
--- a/libs/langchain/tests/integration_tests/tools/nuclia/test_nuclia.py
+++ b/libs/langchain/tests/integration_tests/tools/nuclia/test_nuclia.py
@@ -88,7 +88,6 @@ def test_nuclia_tool() -> None:
                 assert json.loads(data)["uuid"] == "fake_uuid"
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("nucliadb_protos")
 async def test_async_call() -> None:
     with mock.patch(
diff --git a/libs/langchain/tests/integration_tests/utilities/test_dataforseo_api.py b/libs/langchain/tests/integration_tests/utilities/test_dataforseo_api.py
index 8a6a140bc8a..65636b06a68 100644
--- a/libs/langchain/tests/integration_tests/utilities/test_dataforseo_api.py
+++ b/libs/langchain/tests/integration_tests/utilities/test_dataforseo_api.py
@@ -1,6 +1,4 @@
 """Integration test for Dataforseo API Wrapper."""
-import pytest
-
 from langchain.utilities.dataforseo_api_search import DataForSeoAPIWrapper
 
 
@@ -44,14 +42,12 @@ def test_events_call() -> None:
     )
 
 
-@pytest.mark.asyncio
 async def test_async_call() -> None:
     search = DataForSeoAPIWrapper()
     output = await search.arun("pi value")
     assert "3.14159" in output
 
 
-@pytest.mark.asyncio
 async def test_async_results() -> None:
     search = DataForSeoAPIWrapper(json_result_types=["answer_box"])
     output = await search.aresults("New York timezone")
diff --git a/libs/langchain/tests/integration_tests/utilities/test_googleserper_api.py b/libs/langchain/tests/integration_tests/utilities/test_googleserper_api.py
index 2fe4a5b7a72..7b02fce3e46 100644
--- a/libs/langchain/tests/integration_tests/utilities/test_googleserper_api.py
+++ b/libs/langchain/tests/integration_tests/utilities/test_googleserper_api.py
@@ -1,6 +1,4 @@
 """Integration test for Serper.dev's Google Search API Wrapper."""
-import pytest
-
 from langchain.utilities.google_serper import GoogleSerperAPIWrapper
 
 
@@ -25,7 +23,6 @@ async def test_results() -> None:
     assert "Barack Hussein Obama II" in output["answerBox"]["answer"]
 
 
-@pytest.mark.asyncio
 async def test_async_call() -> None:
     """Test that call gives the correct answer."""
     search = GoogleSerperAPIWrapper()
@@ -33,7 +30,6 @@ async def test_async_call() -> None:
     assert "Barack Hussein Obama II" in output
 
 
-@pytest.mark.asyncio
 async def test_async_results() -> None:
     """Test that call gives the correct answer."""
     search = GoogleSerperAPIWrapper()
diff --git a/libs/langchain/tests/integration_tests/utilities/test_searchapi.py b/libs/langchain/tests/integration_tests/utilities/test_searchapi.py
index 510e4fdcdb7..141c2ca3616 100644
--- a/libs/langchain/tests/integration_tests/utilities/test_searchapi.py
+++ b/libs/langchain/tests/integration_tests/utilities/test_searchapi.py
@@ -1,6 +1,4 @@
 """Integration tests for SearchApi"""
-import pytest
-
 from langchain.utilities.searchapi import SearchApiAPIWrapper
 
 
@@ -48,7 +46,6 @@ def test_jobs_call() -> None:
     assert "years of experience" in output
 
 
-@pytest.mark.asyncio
 async def test_async_call() -> None:
     """Test that call gives the correct answer."""
     search = SearchApiAPIWrapper()
@@ -56,7 +53,6 @@ async def test_async_call() -> None:
     assert "Barack Hussein Obama II" in output
 
 
-@pytest.mark.asyncio
 async def test_async_results() -> None:
     """Test that call gives the correct answer."""
     search = SearchApiAPIWrapper()
diff --git a/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_add_texts.py b/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_add_texts.py
index b1689e836a1..7a4865bae10 100644
--- a/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_add_texts.py
+++ b/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_add_texts.py
@@ -12,7 +12,6 @@ from tests.integration_tests.vectorstores.qdrant.async_api.fixtures import (  #
 )
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("batch_size", [1, 64])
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
 async def test_qdrant_aadd_texts_returns_all_ids(
@@ -31,7 +30,6 @@ async def test_qdrant_aadd_texts_returns_all_ids(
     assert 3 == len(set(ids))
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("vector_name", [None, "my-vector"])
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
 async def test_qdrant_aadd_texts_stores_duplicated_texts(
@@ -60,7 +58,6 @@ async def test_qdrant_aadd_texts_stores_duplicated_texts(
     assert 2 == client.count(collection_name).count
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("batch_size", [1, 64])
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
 async def test_qdrant_aadd_texts_stores_ids(
@@ -93,7 +90,6 @@ async def test_qdrant_aadd_texts_stores_ids(
     assert set(ids) == set(stored_ids)
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("vector_name", ["custom-vector"])
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
 async def test_qdrant_aadd_texts_stores_embeddings_as_named_vectors(
diff --git a/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_from_texts.py b/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_from_texts.py
index 3cfe7825edf..f3c27d27bff 100644
--- a/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_from_texts.py
+++ b/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_from_texts.py
@@ -15,7 +15,6 @@ from tests.integration_tests.vectorstores.qdrant.async_api.fixtures import (
 from tests.integration_tests.vectorstores.qdrant.common import qdrant_is_not_running
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
 async def test_qdrant_from_texts_stores_duplicated_texts(qdrant_location: str) -> None:
     """Test end to end Qdrant.afrom_texts stores duplicated texts separately."""
@@ -32,7 +31,6 @@ async def test_qdrant_from_texts_stores_duplicated_texts(qdrant_location: str) -
     assert 2 == client.count(collection_name).count
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("batch_size", [1, 64])
 @pytest.mark.parametrize("vector_name", [None, "my-vector"])
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
@@ -61,7 +59,6 @@ async def test_qdrant_from_texts_stores_ids(
     assert set(ids) == set(stored_ids)
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("vector_name", ["custom-vector"])
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
 async def test_qdrant_from_texts_stores_embeddings_as_named_vectors(
@@ -87,7 +84,6 @@ async def test_qdrant_from_texts_stores_embeddings_as_named_vectors(
     )
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("vector_name", [None, "custom-vector"])
 @pytest.mark.skipif(qdrant_is_not_running(), reason="Qdrant is not running")
 async def test_qdrant_from_texts_reuses_same_collection(
@@ -115,7 +111,6 @@ async def test_qdrant_from_texts_reuses_same_collection(
     assert 7 == client.count(collection_name).count
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("vector_name", [None, "custom-vector"])
 @pytest.mark.skipif(qdrant_is_not_running(), reason="Qdrant is not running")
 async def test_qdrant_from_texts_raises_error_on_different_dimensionality(
@@ -141,7 +136,6 @@ async def test_qdrant_from_texts_raises_error_on_different_dimensionality(
         )
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize(
     ["first_vector_name", "second_vector_name"],
     [
@@ -174,7 +168,6 @@ async def test_qdrant_from_texts_raises_error_on_different_vector_name(
         )
 
 
-@pytest.mark.asyncio
 @pytest.mark.skipif(qdrant_is_not_running(), reason="Qdrant is not running")
 async def test_qdrant_from_texts_raises_error_on_different_distance() -> None:
     """Test if Qdrant.afrom_texts raises an exception if distance does not match"""
@@ -196,7 +189,6 @@ async def test_qdrant_from_texts_raises_error_on_different_distance() -> None:
         )
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("vector_name", [None, "custom-vector"])
 @pytest.mark.skipif(qdrant_is_not_running(), reason="Qdrant is not running")
 async def test_qdrant_from_texts_recreates_collection_on_force_recreate(
@@ -230,7 +222,6 @@ async def test_qdrant_from_texts_recreates_collection_on_force_recreate(
     assert 5 == vector_params.size  # type: ignore[union-attr]
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("batch_size", [1, 64])
 @pytest.mark.parametrize("content_payload_key", [Qdrant.CONTENT_KEY, "foo"])
 @pytest.mark.parametrize("metadata_payload_key", [Qdrant.METADATA_KEY, "bar"])
diff --git a/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_max_marginal_relevance.py b/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_max_marginal_relevance.py
index d46e71f54e6..22683b1ee1f 100644
--- a/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_max_marginal_relevance.py
+++ b/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_max_marginal_relevance.py
@@ -12,7 +12,6 @@ from tests.integration_tests.vectorstores.qdrant.async_api.fixtures import (
 )
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("batch_size", [1, 64])
 @pytest.mark.parametrize("content_payload_key", [Qdrant.CONTENT_KEY, "test_content"])
 @pytest.mark.parametrize("metadata_payload_key", [Qdrant.METADATA_KEY, "test_metadata"])
diff --git a/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_similarity_search.py b/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_similarity_search.py
index 13dd23d9b7a..cfdf98aa45f 100644
--- a/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_similarity_search.py
+++ b/libs/langchain/tests/integration_tests/vectorstores/qdrant/async_api/test_similarity_search.py
@@ -13,7 +13,6 @@ from tests.integration_tests.vectorstores.qdrant.async_api.fixtures import (
 )
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("batch_size", [1, 64])
 @pytest.mark.parametrize("content_payload_key", [Qdrant.CONTENT_KEY, "foo"])
 @pytest.mark.parametrize("metadata_payload_key", [Qdrant.METADATA_KEY, "bar"])
@@ -41,7 +40,6 @@ async def test_qdrant_similarity_search(
     assert output == [Document(page_content="foo")]
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("batch_size", [1, 64])
 @pytest.mark.parametrize("content_payload_key", [Qdrant.CONTENT_KEY, "foo"])
 @pytest.mark.parametrize("metadata_payload_key", [Qdrant.METADATA_KEY, "bar"])
@@ -70,7 +68,6 @@ async def test_qdrant_similarity_search_by_vector(
     assert output == [Document(page_content="foo")]
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("batch_size", [1, 64])
 @pytest.mark.parametrize("content_payload_key", [Qdrant.CONTENT_KEY, "foo"])
 @pytest.mark.parametrize("metadata_payload_key", [Qdrant.METADATA_KEY, "bar"])
@@ -102,7 +99,6 @@ async def test_qdrant_similarity_search_with_score_by_vector(
     assert score >= 0
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("batch_size", [1, 64])
 @pytest.mark.parametrize("vector_name", [None, "my-vector"])
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
@@ -135,7 +131,6 @@ async def test_qdrant_similarity_search_filters(
     ]
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("vector_name", [None, "my-vector"])
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
 async def test_qdrant_similarity_search_with_relevance_score_no_threshold(
@@ -164,7 +159,6 @@ async def test_qdrant_similarity_search_with_relevance_score_no_threshold(
         assert round(output[i][1], 2) <= 1
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("vector_name", [None, "my-vector"])
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
 async def test_qdrant_similarity_search_with_relevance_score_with_threshold(
@@ -194,7 +188,6 @@ async def test_qdrant_similarity_search_with_relevance_score_with_threshold(
     assert all([score >= score_threshold for _, score in output])
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("vector_name", [None, "my-vector"])
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
 async def test_similarity_search_with_relevance_score_with_threshold_and_filter(
@@ -230,7 +223,6 @@ async def test_similarity_search_with_relevance_score_with_threshold_and_filter(
     assert all([score >= score_threshold for _, score in output])
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("vector_name", [None, "my-vector"])
 @pytest.mark.parametrize("qdrant_location", qdrant_locations())
 async def test_qdrant_similarity_search_filters_with_qdrant_filters(
@@ -278,7 +270,6 @@ async def test_qdrant_similarity_search_filters_with_qdrant_filters(
     ]
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("batch_size", [1, 64])
 @pytest.mark.parametrize("content_payload_key", [Qdrant.CONTENT_KEY, "foo"])
 @pytest.mark.parametrize("metadata_payload_key", [Qdrant.METADATA_KEY, "bar"])
diff --git a/libs/langchain/tests/integration_tests/vectorstores/test_chroma.py b/libs/langchain/tests/integration_tests/vectorstores/test_chroma.py
index b9af9fcfe17..abaa03adbe5 100644
--- a/libs/langchain/tests/integration_tests/vectorstores/test_chroma.py
+++ b/libs/langchain/tests/integration_tests/vectorstores/test_chroma.py
@@ -23,7 +23,6 @@ def test_chroma() -> None:
     assert output == [Document(page_content="foo")]
 
 
-@pytest.mark.asyncio
 async def test_chroma_async() -> None:
     """Test end to end construction and search."""
     texts = ["foo", "bar", "baz"]
diff --git a/libs/langchain/tests/integration_tests/vectorstores/test_clickhouse.py b/libs/langchain/tests/integration_tests/vectorstores/test_clickhouse.py
index c8ccc7e5a8c..00e08dfd1ba 100644
--- a/libs/langchain/tests/integration_tests/vectorstores/test_clickhouse.py
+++ b/libs/langchain/tests/integration_tests/vectorstores/test_clickhouse.py
@@ -1,6 +1,4 @@
 """Test ClickHouse functionality."""
-import pytest
-
 from langchain.docstore.document import Document
 from langchain.vectorstores import Clickhouse, ClickhouseSettings
 from tests.integration_tests.vectorstores.fake_embeddings import FakeEmbeddings
@@ -17,7 +15,6 @@ def test_clickhouse() -> None:
     docsearch.drop()
 
 
-@pytest.mark.asyncio
 async def test_clickhouse_async() -> None:
     """Test end to end construction and search."""
     texts = ["foo", "bar", "baz"]
diff --git a/libs/langchain/tests/integration_tests/vectorstores/test_elasticsearch.py b/libs/langchain/tests/integration_tests/vectorstores/test_elasticsearch.py
index 3c597a827c9..80d5fb7eb6b 100644
--- a/libs/langchain/tests/integration_tests/vectorstores/test_elasticsearch.py
+++ b/libs/langchain/tests/integration_tests/vectorstores/test_elasticsearch.py
@@ -157,7 +157,6 @@ class TestElasticsearch:
         output = docsearch.similarity_search("foo", k=1, custom_query=assert_query)
         assert output == [Document(page_content="foo")]
 
-    @pytest.mark.asyncio
     async def test_similarity_search_without_metadat_async(
         self, elasticsearch_connection: dict, index_name: str
     ) -> None:
diff --git a/libs/langchain/tests/integration_tests/vectorstores/test_myscale.py b/libs/langchain/tests/integration_tests/vectorstores/test_myscale.py
index 0ed72742462..ea1b39e9236 100644
--- a/libs/langchain/tests/integration_tests/vectorstores/test_myscale.py
+++ b/libs/langchain/tests/integration_tests/vectorstores/test_myscale.py
@@ -1,6 +1,4 @@
 """Test MyScale functionality."""
-import pytest
-
 from langchain.docstore.document import Document
 from langchain.vectorstores import MyScale, MyScaleSettings
 from tests.integration_tests.vectorstores.fake_embeddings import FakeEmbeddings
@@ -17,7 +15,6 @@ def test_myscale() -> None:
     docsearch.drop()
 
 
-@pytest.mark.asyncio
 async def test_myscale_async() -> None:
     """Test end to end construction and search."""
     texts = ["foo", "bar", "baz"]
diff --git a/libs/langchain/tests/integration_tests/vectorstores/test_timescalevector.py b/libs/langchain/tests/integration_tests/vectorstores/test_timescalevector.py
index 639adc1375a..cc7eae6c0c2 100644
--- a/libs/langchain/tests/integration_tests/vectorstores/test_timescalevector.py
+++ b/libs/langchain/tests/integration_tests/vectorstores/test_timescalevector.py
@@ -3,8 +3,6 @@ import os
 from datetime import datetime, timedelta
 from typing import List
 
-import pytest
-
 from langchain.docstore.document import Document
 from langchain.vectorstores.timescalevector import TimescaleVector
 from tests.integration_tests.vectorstores.fake_embeddings import FakeEmbeddings
@@ -64,7 +62,6 @@ def test_timescalevector_from_documents() -> None:
     assert output == [Document(page_content="foo", metadata={"a": "b"})]
 
 
-@pytest.mark.asyncio
 async def test_timescalevector_afrom_documents() -> None:
     """Test end to end construction and search."""
     texts = ["foo", "bar", "baz"]
@@ -96,7 +93,6 @@ def test_timescalevector_embeddings() -> None:
     assert output == [Document(page_content="foo")]
 
 
-@pytest.mark.asyncio
 async def test_timescalevector_aembeddings() -> None:
     """Test end to end construction with embeddings and search."""
     texts = ["foo", "bar", "baz"]
@@ -145,7 +141,6 @@ def test_timescalevector_with_metadatas_with_scores() -> None:
     assert output == [(Document(page_content="foo", metadata={"page": "0"}), 0.0)]
 
 
-@pytest.mark.asyncio
 async def test_timescalevector_awith_metadatas_with_scores() -> None:
     """Test end to end construction and search."""
     texts = ["foo", "bar", "baz"]
@@ -254,7 +249,6 @@ def test_timescalevector_relevance_score() -> None:
     ]
 
 
-@pytest.mark.asyncio
 async def test_timescalevector_relevance_score_async() -> None:
     """Test to make sure the relevance score is scaled to 0-1."""
     texts = ["foo", "bar", "baz"]
diff --git a/libs/langchain/tests/integration_tests/vectorstores/test_zep.py b/libs/langchain/tests/integration_tests/vectorstores/test_zep.py
index 7db7f72f1fd..10266370fbc 100644
--- a/libs/langchain/tests/integration_tests/vectorstores/test_zep.py
+++ b/libs/langchain/tests/integration_tests/vectorstores/test_zep.py
@@ -191,7 +191,6 @@ def test_add_documents(
 
 
 @pytest.mark.requires("zep_python")
-@pytest.mark.asyncio
 async def test_asearch_similarity(
     zep_vectorstore: ZepVectorStore,
 ) -> None:
@@ -205,7 +204,6 @@ async def test_asearch_similarity(
 
 
 @pytest.mark.requires("zep_python")
-@pytest.mark.asyncio
 async def test_asearch_mmr(
     zep_vectorstore: ZepVectorStore,
 ) -> None:
diff --git a/libs/langchain/tests/unit_tests/agents/test_agent_iterator.py b/libs/langchain/tests/unit_tests/agents/test_agent_iterator.py
index 6861d676189..dd63f03732a 100644
--- a/libs/langchain/tests/unit_tests/agents/test_agent_iterator.py
+++ b/libs/langchain/tests/unit_tests/agents/test_agent_iterator.py
@@ -57,7 +57,6 @@ def test_agent_iterator_stopped_early() -> None:
     )
 
 
-@pytest.mark.asyncio
 async def test_agent_async_iterator_stopped_early() -> None:
     """
     Test react chain async iterator when max iterations or
@@ -151,7 +150,6 @@ def test_agent_iterator_with_callbacks() -> None:
     )
 
 
-@pytest.mark.asyncio
 async def test_agent_async_iterator_with_callbacks() -> None:
     """Test react chain async iterator with callbacks by setting verbose globally."""
     handler1 = FakeCallbackHandler()
@@ -281,7 +279,6 @@ def test_agent_iterator_output_structure() -> None:
             assert False, "Unexpected output structure"
 
 
-@pytest.mark.asyncio
 async def test_agent_async_iterator_output_structure() -> None:
     """Test the async output structure of AgentExecutorIterator."""
     agent = _get_agent()
diff --git a/libs/langchain/tests/unit_tests/callbacks/test_callback_manager.py b/libs/langchain/tests/unit_tests/callbacks/test_callback_manager.py
index 5d8ce135b1f..e21c8e57235 100644
--- a/libs/langchain/tests/unit_tests/callbacks/test_callback_manager.py
+++ b/libs/langchain/tests/unit_tests/callbacks/test_callback_manager.py
@@ -111,7 +111,6 @@ def test_callback_manager_with_async() -> None:
     _test_callback_manager(manager, handler1, handler2, handler3, handler4)
 
 
-@pytest.mark.asyncio
 async def test_callback_manager_with_async_with_running_loop() -> None:
     """Test the CallbackManager."""
     handler1 = FakeCallbackHandler()
@@ -187,7 +186,6 @@ def test_ignore_retriever() -> None:
     assert handler2.errors == 1
 
 
-@pytest.mark.asyncio
 async def test_async_callback_manager() -> None:
     """Test the AsyncCallbackManager."""
     handler1 = FakeAsyncCallbackHandler()
@@ -196,7 +194,6 @@ async def test_async_callback_manager() -> None:
     await _test_callback_manager_async(manager, handler1, handler2)
 
 
-@pytest.mark.asyncio
 async def test_async_callback_manager_sync_handler() -> None:
     """Test the AsyncCallbackManager."""
     handler1 = FakeCallbackHandler()
diff --git a/libs/langchain/tests/unit_tests/chains/test_sequential.py b/libs/langchain/tests/unit_tests/chains/test_sequential.py
index 861f013f5fb..36aafc22662 100644
--- a/libs/langchain/tests/unit_tests/chains/test_sequential.py
+++ b/libs/langchain/tests/unit_tests/chains/test_sequential.py
@@ -180,7 +180,6 @@ def test_simple_sequential_functionality() -> None:
     assert output == expected_output
 
 
-@pytest.mark.asyncio
 @pytest.mark.parametrize("isAsync", [False, True])
 async def test_simple_sequential_functionality_with_callbacks(isAsync: bool) -> None:
     """Test simple sequential functionality."""
diff --git a/libs/langchain/tests/unit_tests/document_loaders/test_mongodb.py b/libs/langchain/tests/unit_tests/document_loaders/test_mongodb.py
index c6b380596d3..802c49893d5 100644
--- a/libs/langchain/tests/unit_tests/document_loaders/test_mongodb.py
+++ b/libs/langchain/tests/unit_tests/document_loaders/test_mongodb.py
@@ -30,7 +30,6 @@ def expected_documents() -> List[Document]:
 
 
 @pytest.mark.requires("motor")
-@pytest.mark.asyncio
 async def test_load_mocked(expected_documents: List[Document]) -> None:
     mock_async_load = AsyncMock()
     mock_async_load.return_value = expected_documents
diff --git a/libs/langchain/tests/unit_tests/evaluation/string_distance/test_base.py b/libs/langchain/tests/unit_tests/evaluation/string_distance/test_base.py
index 70dc7aaa789..8e49f1f7d06 100644
--- a/libs/langchain/tests/unit_tests/evaluation/string_distance/test_base.py
+++ b/libs/langchain/tests/unit_tests/evaluation/string_distance/test_base.py
@@ -17,7 +17,6 @@ def test_zero_distance(distance: StringDistance) -> None:
     assert result["score"] == 0
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("rapidfuzz")
 @pytest.mark.parametrize("distance", list(StringDistance))
 async def test_zero_distance_async(distance: StringDistance) -> None:
@@ -43,7 +42,6 @@ def test_zero_distance_pairwise(
     assert result["score"] == 0
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("rapidfuzz")
 @pytest.mark.parametrize("distance", list(StringDistance))
 async def test_zero_distance_pairwise_async(distance: StringDistance) -> None:
@@ -77,7 +75,6 @@ def test_non_zero_distance(distance: StringDistance, normalize_score: bool) -> N
         assert result["score"] < 1.0
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("rapidfuzz")
 @pytest.mark.parametrize("distance", valid_distances)
 async def test_non_zero_distance_async(distance: StringDistance) -> None:
@@ -104,7 +101,6 @@ def test_non_zero_distance_pairwise(distance: StringDistance) -> None:
     assert 0 < result["score"] < 1.0
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("rapidfuzz")
 @pytest.mark.parametrize("distance", valid_distances)
 async def test_non_zero_distance_pairwise_async(distance: StringDistance) -> None:
diff --git a/libs/langchain/tests/unit_tests/indexes/test_indexing.py b/libs/langchain/tests/unit_tests/indexes/test_indexing.py
index ac36b8a4f38..1082927e790 100644
--- a/libs/langchain/tests/unit_tests/indexes/test_indexing.py
+++ b/libs/langchain/tests/unit_tests/indexes/test_indexing.py
@@ -208,7 +208,6 @@ def test_indexing_same_content(
         }
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_aindexing_same_content(
     arecord_manager: SQLRecordManager, vector_store: InMemoryVectorStore
@@ -321,7 +320,6 @@ def test_index_simple_delete_full(
         }
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_aindex_simple_delete_full(
     arecord_manager: SQLRecordManager, vector_store: InMemoryVectorStore
@@ -442,7 +440,6 @@ def test_incremental_fails_with_bad_source_ids(
         )
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_aincremental_fails_with_bad_source_ids(
     arecord_manager: SQLRecordManager, vector_store: InMemoryVectorStore
@@ -566,7 +563,6 @@ def test_no_delete(
         }
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_ano_delete(
     arecord_manager: SQLRecordManager, vector_store: InMemoryVectorStore
@@ -753,7 +749,6 @@ def test_incremental_delete(
     }
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_aincremental_delete(
     arecord_manager: SQLRecordManager, vector_store: InMemoryVectorStore
@@ -873,7 +868,6 @@ def test_indexing_with_no_docs(
     }
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_aindexing_with_no_docs(
     arecord_manager: SQLRecordManager, vector_store: VectorStore
@@ -915,7 +909,6 @@ def test_deduplication(
     }
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_adeduplication(
     arecord_manager: SQLRecordManager, vector_store: VectorStore
@@ -978,7 +971,6 @@ def test_cleanup_with_different_batchsize(
     }
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_async_cleanup_with_different_batchsize(
     arecord_manager: SQLRecordManager, vector_store: InMemoryVectorStore
@@ -1061,7 +1053,6 @@ async def _to_async_iter(it: Iterable[Any]) -> AsyncIterator[Any]:
         yield i
 
 
-@pytest.mark.asyncio
 async def test_abatch() -> None:
     """Test the abatch function."""
     batches = _abatch(5, _to_async_iter(range(12)))
diff --git a/libs/langchain/tests/unit_tests/indexes/test_sql_record_manager.py b/libs/langchain/tests/unit_tests/indexes/test_sql_record_manager.py
index 966ad8b0e5f..44f564cc00b 100644
--- a/libs/langchain/tests/unit_tests/indexes/test_sql_record_manager.py
+++ b/libs/langchain/tests/unit_tests/indexes/test_sql_record_manager.py
@@ -44,7 +44,6 @@ def test_update(manager: SQLRecordManager) -> None:
     assert read_keys == ["key1", "key2", "key3"]
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_aupdate(amanager: SQLRecordManager) -> None:
     """Test updating records in the database."""
@@ -150,7 +149,6 @@ def test_update_timestamp(manager: SQLRecordManager) -> None:
         ]
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_aupdate_timestamp(amanager: SQLRecordManager) -> None:
     """Test updating records in the database."""
@@ -274,7 +272,6 @@ def test_update_with_group_ids(manager: SQLRecordManager) -> None:
     assert read_keys == ["key1", "key2", "key3"]
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_aupdate_with_group_ids(amanager: SQLRecordManager) -> None:
     """Test updating records in the database."""
@@ -304,7 +301,6 @@ def test_exists(manager: SQLRecordManager) -> None:
     assert exists == [True, False]
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_aexists(amanager: SQLRecordManager) -> None:
     """Test checking if keys exist in the database."""
@@ -408,7 +404,6 @@ def test_list_keys(manager: SQLRecordManager) -> None:
     ) == ["key4"]
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_alist_keys(amanager: SQLRecordManager) -> None:
     """Test listing keys based on the provided date range."""
@@ -527,7 +522,6 @@ def test_namespace_is_used(manager: SQLRecordManager) -> None:
         ]
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_anamespace_is_used(amanager: SQLRecordManager) -> None:
     """Verify that namespace is taken into account for all operations."""
@@ -571,7 +565,6 @@ def test_delete_keys(manager: SQLRecordManager) -> None:
     assert remaining_keys == ["key3"]
 
 
-@pytest.mark.asyncio
 @pytest.mark.requires("aiosqlite")
 async def test_adelete_keys(amanager: SQLRecordManager) -> None:
     """Test deleting keys from the database."""
diff --git a/libs/langchain/tests/unit_tests/llms/test_base.py b/libs/langchain/tests/unit_tests/llms/test_base.py
index cf8f15d28b1..2d5f0a88098 100644
--- a/libs/langchain/tests/unit_tests/llms/test_base.py
+++ b/libs/langchain/tests/unit_tests/llms/test_base.py
@@ -6,7 +6,6 @@ try:
 except ImportError:
     from sqlalchemy.ext.declarative import declarative_base
 
-import pytest
 from langchain_core.schema import Generation, LLMResult
 
 from langchain.cache import InMemoryCache, SQLAlchemyCache
@@ -86,7 +85,6 @@ def test_batch() -> None:
     assert output == ["foo"] * 3
 
 
-@pytest.mark.asyncio
 async def test_abatch() -> None:
     llm = FakeLLM()
     output = await llm.abatch(["foo", "bar", "foo"])
diff --git a/libs/langchain/tests/unit_tests/llms/test_openai.py b/libs/langchain/tests/unit_tests/llms/test_openai.py
index eaaba450209..ad9279daf8b 100644
--- a/libs/langchain/tests/unit_tests/llms/test_openai.py
+++ b/libs/langchain/tests/unit_tests/llms/test_openai.py
@@ -115,7 +115,6 @@ def test_openai_retries(mock_completion: dict) -> None:
     _openai_v1_installed(), reason="Retries only handled by LangChain for openai<1"
 )
 @pytest.mark.requires("openai")
-@pytest.mark.asyncio
 async def test_openai_async_retries(mock_completion: dict) -> None:
     llm = OpenAI()
     mock_client = MagicMock()
diff --git a/libs/langchain/tests/unit_tests/output_parsers/test_json.py b/libs/langchain/tests/unit_tests/output_parsers/test_json.py
index c7b4792e06c..d9bae651b62 100644
--- a/libs/langchain/tests/unit_tests/output_parsers/test_json.py
+++ b/libs/langchain/tests/unit_tests/output_parsers/test_json.py
@@ -494,7 +494,6 @@ def test_partial_functions_json_output_parser_diff() -> None:
     assert list(chain.stream(None)) == EXPECTED_STREAMED_JSON_DIFF
 
 
-@pytest.mark.asyncio
 async def test_partial_text_json_output_parser_async() -> None:
     async def input_iter(_: Any) -> AsyncIterator[str]:
         for token in STREAMED_TOKENS:
@@ -505,7 +504,6 @@ async def test_partial_text_json_output_parser_async() -> None:
     assert [p async for p in chain.astream(None)] == EXPECTED_STREAMED_JSON
 
 
-@pytest.mark.asyncio
 async def test_partial_functions_json_output_parser_async() -> None:
     async def input_iter(_: Any) -> AsyncIterator[AIMessageChunk]:
         for token in STREAMED_TOKENS:
@@ -518,7 +516,6 @@ async def test_partial_functions_json_output_parser_async() -> None:
     assert [p async for p in chain.astream(None)] == EXPECTED_STREAMED_JSON
 
 
-@pytest.mark.asyncio
 async def test_partial_text_json_output_parser_diff_async() -> None:
     async def input_iter(_: Any) -> AsyncIterator[str]:
         for token in STREAMED_TOKENS:
@@ -529,7 +526,6 @@ async def test_partial_text_json_output_parser_diff_async() -> None:
     assert [p async for p in chain.astream(None)] == EXPECTED_STREAMED_JSON_DIFF
 
 
-@pytest.mark.asyncio
 async def test_partial_functions_json_output_parser_diff_async() -> None:
     async def input_iter(_: Any) -> AsyncIterator[AIMessageChunk]:
         for token in STREAMED_TOKENS:
diff --git a/libs/langchain/tests/unit_tests/retrievers/self_query/test_base.py b/libs/langchain/tests/unit_tests/retrievers/self_query/test_base.py
index b0eea6dfdf7..8797b6a4c96 100644
--- a/libs/langchain/tests/unit_tests/retrievers/self_query/test_base.py
+++ b/libs/langchain/tests/unit_tests/retrievers/self_query/test_base.py
@@ -130,7 +130,6 @@ def test__get_relevant_documents(fake_self_query_retriever: SelfQueryRetriever)
     assert relevant_documents[0].metadata["foo"] == "bar"
 
 
-@pytest.mark.asyncio
 async def test__aget_relevant_documents(
     fake_self_query_retriever: SelfQueryRetriever,
 ) -> None:
diff --git a/libs/langchain/tests/unit_tests/retrievers/test_base.py b/libs/langchain/tests/unit_tests/retrievers/test_base.py
index 90b83c12d52..f543a0d368e 100644
--- a/libs/langchain/tests/unit_tests/retrievers/test_base.py
+++ b/libs/langchain/tests/unit_tests/retrievers/test_base.py
@@ -59,7 +59,6 @@ def test_fake_retriever_v1_upgrade(fake_retriever_v1: BaseRetriever) -> None:
     assert callbacks.retriever_errors == 0
 
 
-@pytest.mark.asyncio
 async def test_fake_retriever_v1_upgrade_async(
     fake_retriever_v1: BaseRetriever,
 ) -> None:
@@ -122,7 +121,6 @@ def test_fake_retriever_v1_with_kwargs_upgrade(
     assert callbacks.retriever_errors == 0
 
 
-@pytest.mark.asyncio
 async def test_fake_retriever_v1_with_kwargs_upgrade_async(
     fake_retriever_v1_with_kwargs: BaseRetriever,
 ) -> None:
@@ -202,7 +200,6 @@ def test_fake_retriever_v2(
     assert callbacks.retriever_errors == 1
 
 
-@pytest.mark.asyncio
 async def test_fake_retriever_v2_async(
     fake_retriever_v2: BaseRetriever, fake_erroring_retriever_v2: BaseRetriever
 ) -> None:
diff --git a/libs/langchain/tests/unit_tests/smith/evaluation/test_runner_utils.py b/libs/langchain/tests/unit_tests/smith/evaluation/test_runner_utils.py
index 061cf0e740c..89ee06a7a93 100644
--- a/libs/langchain/tests/unit_tests/smith/evaluation/test_runner_utils.py
+++ b/libs/langchain/tests/unit_tests/smith/evaluation/test_runner_utils.py
@@ -239,7 +239,6 @@ def test_run_chat_model_all_formats(inputs: Dict[str, Any]) -> None:
     _run_llm(llm, inputs, mock.MagicMock())
 
 
-@pytest.mark.asyncio
 @freeze_time("2023-01-01")
 async def test_arun_on_dataset(monkeypatch: pytest.MonkeyPatch) -> None:
     dataset = Dataset(
diff --git a/libs/langchain/tests/unit_tests/tools/shell/test_shell.py b/libs/langchain/tests/unit_tests/tools/shell/test_shell.py
index 3d41907b14e..78b01d4e32a 100644
--- a/libs/langchain/tests/unit_tests/tools/shell/test_shell.py
+++ b/libs/langchain/tests/unit_tests/tools/shell/test_shell.py
@@ -1,8 +1,6 @@
 import warnings
 from typing import List
 
-import pytest
-
 from langchain.tools.shell.tool import ShellInput, ShellTool
 
 # Test data
@@ -55,7 +53,6 @@ def test_shell_tool_run() -> None:
     assert result.strip() == "hello"
 
 
-@pytest.mark.asyncio
 async def test_shell_tool_arun() -> None:
     placeholder = PlaceholderProcess(output="hello")
     shell_tool = ShellTool(process=placeholder)
diff --git a/libs/langchain/tests/unit_tests/tools/test_zapier.py b/libs/langchain/tests/unit_tests/tools/test_zapier.py
index a078cb7a1e4..fbe5c7c2253 100644
--- a/libs/langchain/tests/unit_tests/tools/test_zapier.py
+++ b/libs/langchain/tests/unit_tests/tools/test_zapier.py
@@ -133,7 +133,6 @@ def test_create_action_payload_with_params() -> None:
     assert payload["test"] == "test"
 
 
-@pytest.mark.asyncio
 async def test_apreview(mocker) -> None:  # type: ignore[no-untyped-def]
     """Test that the action payload with params is being created correctly."""
     tool = ZapierNLARunAction(
@@ -162,7 +161,6 @@ async def test_apreview(mocker) -> None:  # type: ignore[no-untyped-def]
     )
 
 
-@pytest.mark.asyncio
 async def test_arun(mocker) -> None:  # type: ignore[no-untyped-def]
     """Test that the action payload with params is being created correctly."""
     tool = ZapierNLARunAction(
@@ -187,7 +185,6 @@ async def test_arun(mocker) -> None:  # type: ignore[no-untyped-def]
     )
 
 
-@pytest.mark.asyncio
 async def test_alist(mocker) -> None:  # type: ignore[no-untyped-def]
     """Test that the action payload with params is being created correctly."""
     tool = ZapierNLARunAction(
diff --git a/libs/langchain/tests/unit_tests/vectorstores/test_faiss.py b/libs/langchain/tests/unit_tests/vectorstores/test_faiss.py
index 592db0c3c57..df57289448e 100644
--- a/libs/langchain/tests/unit_tests/vectorstores/test_faiss.py
+++ b/libs/langchain/tests/unit_tests/vectorstores/test_faiss.py
@@ -31,7 +31,6 @@ def test_faiss() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_afrom_texts() -> None:
     """Test end to end construction and search."""
     texts = ["foo", "bar", "baz"]
@@ -69,7 +68,6 @@ def test_faiss_vector_sim() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_vector_sim() -> None:
     """Test vector similarity."""
     texts = ["foo", "bar", "baz"]
@@ -108,7 +106,6 @@ def test_faiss_vector_sim_with_score_threshold() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_vector_async_sim_with_score_threshold() -> None:
     """Test vector similarity."""
     texts = ["foo", "bar", "baz"]
@@ -150,7 +147,6 @@ def test_similarity_search_with_score_by_vector() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_similarity_async_search_with_score_by_vector() -> None:
     """Test vector similarity with score by vector."""
     texts = ["foo", "bar", "baz"]
@@ -196,7 +192,6 @@ def test_similarity_search_with_score_by_vector_with_score_threshold() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_sim_asearch_with_score_by_vector_with_score_threshold() -> None:
     """Test vector similarity with score by vector."""
     texts = ["foo", "bar", "baz"]
@@ -237,7 +232,6 @@ def test_faiss_mmr() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_mmr() -> None:
     texts = ["foo", "foo", "fou", "foy"]
     docsearch = await FAISS.afrom_texts(texts, FakeEmbeddings())
@@ -268,7 +262,6 @@ def test_faiss_mmr_with_metadatas() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_mmr_with_metadatas() -> None:
     texts = ["foo", "foo", "fou", "foy"]
     metadatas = [{"page": i} for i in range(len(texts))]
@@ -298,7 +291,6 @@ def test_faiss_mmr_with_metadatas_and_filter() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_mmr_with_metadatas_and_filter() -> None:
     texts = ["foo", "foo", "fou", "foy"]
     metadatas = [{"page": i} for i in range(len(texts))]
@@ -328,7 +320,6 @@ def test_faiss_mmr_with_metadatas_and_list_filter() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_mmr_with_metadatas_and_list_filter() -> None:
     texts = ["foo", "foo", "fou", "foy"]
     metadatas = [{"page": i} if i <= 3 else {"page": 3} for i in range(len(texts))]
@@ -368,7 +359,6 @@ def test_faiss_with_metadatas() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_with_metadatas() -> None:
     """Test end to end construction and search."""
     texts = ["foo", "bar", "baz"]
@@ -416,7 +406,6 @@ def test_faiss_with_metadatas_and_filter() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_with_metadatas_and_filter() -> None:
     texts = ["foo", "bar", "baz"]
     metadatas = [{"page": i} for i in range(len(texts))]
@@ -469,7 +458,6 @@ def test_faiss_with_metadatas_and_list_filter() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_with_metadatas_and_list_filter() -> None:
     texts = ["foo", "bar", "baz", "foo", "qux"]
     metadatas = [{"page": i} if i <= 3 else {"page": 3} for i in range(len(texts))]
@@ -510,7 +498,6 @@ def test_faiss_search_not_found() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_search_not_found() -> None:
     """Test what happens when document is not found."""
     texts = ["foo", "bar", "baz"]
@@ -534,7 +521,6 @@ def test_faiss_add_texts() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_add_texts() -> None:
     """Test end to end adding of texts."""
     # Create initial doc store.
@@ -555,7 +541,6 @@ def test_faiss_add_texts_not_supported() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_add_texts_not_supported() -> None:
     """Test adding of texts to a docstore that doesn't support it."""
     docsearch = FAISS(FakeEmbeddings(), None, FakeDocstore(), {})
@@ -576,7 +561,6 @@ def test_faiss_local_save_load() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_local_save_load() -> None:
     """Test end to end serialization."""
     texts = ["foo", "bar", "baz"]
@@ -604,7 +588,6 @@ def test_faiss_similarity_search_with_relevance_scores() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_similarity_search_with_relevance_scores() -> None:
     """Test the similarity search with normalized similarities."""
     texts = ["foo", "bar", "baz"]
@@ -638,7 +621,6 @@ def test_faiss_similarity_search_with_relevance_scores_with_threshold() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_asimilarity_search_with_relevance_scores_with_threshold() -> None:
     """Test the similarity search with normalized similarities with score threshold."""
     texts = ["foo", "bar", "baz"]
@@ -668,7 +650,6 @@ def test_faiss_invalid_normalize_fn() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_faiss_async_invalid_normalize_fn() -> None:
     """Test the similarity search with normalized similarities."""
     texts = ["foo", "bar", "baz"]
@@ -689,7 +670,6 @@ def test_missing_normalize_score_fn() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_async_missing_normalize_score_fn() -> None:
     """Test doesn't perform similarity search without a valid distance strategy."""
     texts = ["foo", "bar", "baz"]
@@ -713,7 +693,6 @@ def test_delete() -> None:
 
 
 @pytest.mark.requires("faiss")
-@pytest.mark.asyncio
 async def test_async_delete() -> None:
     """Test the similarity search with normalized similarities."""
     ids = ["a", "b", "c"]