diff --git a/libs/langchain/langchain/chains/openai_functions/openapi.py b/libs/langchain/langchain/chains/openai_functions/openapi.py
index 6f606ee5c86..ad6597e4a17 100644
--- a/libs/langchain/langchain/chains/openai_functions/openapi.py
+++ b/libs/langchain/langchain/chains/openai_functions/openapi.py
@@ -5,14 +5,12 @@ import re
 from collections import defaultdict
 from typing import TYPE_CHECKING, Any, Callable, Dict, List, Optional, Tuple, Union
 
-import requests
 from langchain_core._api import deprecated
 from langchain_core.callbacks import CallbackManagerForChainRun
 from langchain_core.language_models import BaseLanguageModel
 from langchain_core.output_parsers.openai_functions import JsonOutputFunctionsParser
 from langchain_core.prompts import BasePromptTemplate, ChatPromptTemplate
 from langchain_core.utils.input import get_colored_text
-from requests import Response
 
 from langchain.chains.base import Chain
 from langchain.chains.llm import LLMChain
@@ -21,6 +19,7 @@ from langchain.chains.sequential import SequentialChain
 if TYPE_CHECKING:
     from langchain_community.utilities.openapi import OpenAPISpec
     from openapi_pydantic import Parameter
+    from requests import Response
 
 
 def _get_description(o: Any, prefer_short: bool) -> Optional[str]:
@@ -175,6 +174,12 @@ def openapi_spec_to_openai_fn(
         params: Optional[dict] = None,
         **kwargs: Any,
     ) -> Any:
+        try:
+            import requests
+        except ImportError as e:
+            raise ImportError(
+                "Could not import requests, please install with `pip install requests`."
+            ) from e
         method = _name_to_call_map[name]["method"]
         url = _name_to_call_map[name]["url"]
         path_params = fn_args.pop("path_params", {})
diff --git a/libs/langchain/langchain/smith/evaluation/runner_utils.py b/libs/langchain/langchain/smith/evaluation/runner_utils.py
index 344e9638f36..15ed313b43c 100644
--- a/libs/langchain/langchain/smith/evaluation/runner_utils.py
+++ b/libs/langchain/langchain/smith/evaluation/runner_utils.py
@@ -46,7 +46,6 @@ from langsmith.evaluation import (
 from langsmith.run_helpers import as_runnable, is_traceable_function
 from langsmith.schemas import Dataset, DataType, Example, Run, TracerSession
 from langsmith.utils import LangSmithError
-from requests import HTTPError
 from typing_extensions import TypedDict
 
 from langchain.chains.base import Chain
@@ -972,6 +971,12 @@ def _prepare_eval_run(
     tags: Optional[List[str]] = None,
     dataset_version: Optional[Union[str, datetime]] = None,
 ) -> Tuple[MCF, TracerSession, Dataset, List[Example]]:
+    try:
+        from requests import HTTPError
+    except ImportError as e:
+        raise ImportError(
+            "Could not import requests, please install with `pip install requests`."
+        ) from e
     wrapped_model = _wrap_in_chain_factory(llm_or_chain_factory, dataset_name)
     dataset = client.read_dataset(dataset_name=dataset_name)
 
diff --git a/libs/langchain/pyproject.toml b/libs/langchain/pyproject.toml
index 2b181170089..1385c974fae 100644
--- a/libs/langchain/pyproject.toml
+++ b/libs/langchain/pyproject.toml
@@ -12,7 +12,6 @@ dependencies = [
     "langsmith<0.4,>=0.1.17",
     "pydantic<3.0.0,>=2.7.4",
     "SQLAlchemy<3,>=1.4",
-    "requests<3,>=2",
     "PyYAML>=5.3",
     "numpy<2,>=1.26.4; python_version < \"3.12\"",
     "numpy<3,>=1.26.2; python_version >= \"3.12\"",
@@ -74,6 +73,7 @@ test = [
     "langchain-openai",
     "toml>=0.10.2",
     "packaging>=24.2",
+    "requests<3,>=2",
 ]
 codespell = ["codespell<3.0.0,>=2.2.0"]
 test_integration = [
@@ -102,6 +102,7 @@ typing = [
     "mypy-protobuf<4.0.0,>=3.0.0",
     "langchain-core",
     "langchain-text-splitters",
+    "requests<3,>=2",
 ]
 dev = [
     "jupyter<2.0.0,>=1.0.0",
diff --git a/libs/langchain/uv.lock b/libs/langchain/uv.lock
index 8fb43b3cd29..b4cb7620fde 100644
--- a/libs/langchain/uv.lock
+++ b/libs/langchain/uv.lock
@@ -2251,7 +2251,6 @@ dependencies = [
     { name = "numpy", version = "2.2.3", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version >= '3.12'" },
     { name = "pydantic" },
     { name = "pyyaml" },
-    { name = "requests" },
     { name = "sqlalchemy" },
 ]
 
@@ -2339,6 +2338,7 @@ test = [
     { name = "pytest-socket" },
     { name = "pytest-watcher" },
     { name = "pytest-xdist" },
+    { name = "requests" },
     { name = "requests-mock" },
     { name = "responses" },
     { name = "syrupy" },
@@ -2359,6 +2359,7 @@ typing = [
     { name = "langchain-text-splitters" },
     { name = "mypy" },
     { name = "mypy-protobuf" },
+    { name = "requests" },
     { name = "types-chardet" },
     { name = "types-pytz" },
     { name = "types-pyyaml" },
@@ -2393,7 +2394,6 @@ requires-dist = [
     { name = "numpy", marker = "python_full_version >= '3.12'", specifier = ">=1.26.2,<3" },
     { name = "pydantic", specifier = ">=2.7.4,<3.0.0" },
     { name = "pyyaml", specifier = ">=5.3" },
-    { name = "requests", specifier = ">=2,<3" },
     { name = "sqlalchemy", specifier = ">=1.4,<3" },
 ]
 
@@ -2432,6 +2432,7 @@ test = [
     { name = "pytest-socket", specifier = ">=0.6.0,<1.0.0" },
     { name = "pytest-watcher", specifier = ">=0.2.6,<1.0.0" },
     { name = "pytest-xdist", specifier = ">=3.6.1,<4.0.0" },
+    { name = "requests", specifier = ">=2,<3" },
     { name = "requests-mock", specifier = ">=1.11.0,<2.0.0" },
     { name = "responses", specifier = ">=0.22.0,<1.0.0" },
     { name = "syrupy", specifier = ">=4.0.2,<5.0.0" },
@@ -2452,6 +2453,7 @@ typing = [
     { name = "langchain-text-splitters", editable = "../text-splitters" },
     { name = "mypy", specifier = ">=1.10,<2.0" },
     { name = "mypy-protobuf", specifier = ">=3.0.0,<4.0.0" },
+    { name = "requests", specifier = ">=2,<3" },
     { name = "types-chardet", specifier = ">=5.0.4.6,<6.0.0.0" },
     { name = "types-pytz", specifier = ">=2023.3.0.0,<2024.0.0.0" },
     { name = "types-pyyaml", specifier = ">=6.0.12.2,<7.0.0.0" },