diff --git a/libs/langchain_v1/uv.lock b/libs/langchain_v1/uv.lock
index 9631d73a5cc..14fdadc6108 100644
--- a/libs/langchain_v1/uv.lock
+++ b/libs/langchain_v1/uv.lock
@@ -2019,7 +2019,7 @@ typing = [
 
 [[package]]
 name = "langchain-anthropic"
-version = "1.3.4"
+version = "1.3.5"
 source = { editable = "../partners/anthropic" }
 dependencies = [
     { name = "anthropic" },
@@ -2151,7 +2151,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.18"
+version = "1.2.19"
 source = { editable = "../core" }
 dependencies = [
     { name = "jsonpatch" },
diff --git a/libs/standard-tests/langchain_tests/integration_tests/chat_models.py b/libs/standard-tests/langchain_tests/integration_tests/chat_models.py
index 9191fd61d5a..3b49ac45765 100644
--- a/libs/standard-tests/langchain_tests/integration_tests/chat_models.py
+++ b/libs/standard-tests/langchain_tests/integration_tests/chat_models.py
@@ -2583,7 +2583,9 @@ class ChatModelIntegrationTests(ChatModelTests):
             pytest.skip("Model does not support PDF inputs.")
 
         url = "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf"
-        pdf_data = base64.b64encode(httpx.get(url, timeout=10.0).content).decode("utf-8")
+        pdf_data = base64.b64encode(httpx.get(url, timeout=10.0).content).decode(
+            "utf-8"
+        )
 
         message = HumanMessage(
             [
@@ -2781,7 +2783,9 @@ class ChatModelIntegrationTests(ChatModelTests):
             pytest.skip("Model does not support image message.")
 
         image_url = "https://raw.githubusercontent.com/langchain-ai/docs/4d11d08b6b0e210bd456943f7a22febbd168b543/src/images/agentic-rag-output.png"
-        image_data = base64.b64encode(httpx.get(image_url, timeout=10.0).content).decode("utf-8")
+        image_data = base64.b64encode(
+            httpx.get(image_url, timeout=10.0).content
+        ).decode("utf-8")
 
         # OpenAI CC format, base64 data
         message = HumanMessage(
@@ -2887,7 +2891,9 @@ class ChatModelIntegrationTests(ChatModelTests):
             pytest.skip("Model does not support image tool message.")
 
         image_url = "https://raw.githubusercontent.com/langchain-ai/docs/4d11d08b6b0e210bd456943f7a22febbd168b543/src/images/agentic-rag-output.png"
-        image_data = base64.b64encode(httpx.get(image_url, timeout=10.0).content).decode("utf-8")
+        image_data = base64.b64encode(
+            httpx.get(image_url, timeout=10.0).content
+        ).decode("utf-8")
 
         # OpenAI CC format, base64 data
         oai_format_message = ToolMessage(
@@ -2986,7 +2992,9 @@ class ChatModelIntegrationTests(ChatModelTests):
             pytest.skip("Model does not support PDF tool message.")
 
         url = "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf"
-        pdf_data = base64.b64encode(httpx.get(url, timeout=10.0).content).decode("utf-8")
+        pdf_data = base64.b64encode(httpx.get(url, timeout=10.0).content).decode(
+            "utf-8"
+        )
 
         tool_message = ToolMessage(
             content_blocks=[
@@ -3122,7 +3130,9 @@ class ChatModelIntegrationTests(ChatModelTests):
         ]
         if self.supports_image_inputs:
             image_url = "https://raw.githubusercontent.com/langchain-ai/docs/4d11d08b6b0e210bd456943f7a22febbd168b543/src/images/agentic-rag-output.png"
-            image_data = base64.b64encode(httpx.get(image_url, timeout=10.0).content).decode("utf-8")
+            image_data = base64.b64encode(
+                httpx.get(image_url, timeout=10.0).content
+            ).decode("utf-8")
             human_content.append(
                 {
                     "type": "image",
diff --git a/libs/text-splitters/langchain_text_splitters/base.py b/libs/text-splitters/langchain_text_splitters/base.py
index fa94ee2d464..a12564c03b3 100644
--- a/libs/text-splitters/langchain_text_splitters/base.py
+++ b/libs/text-splitters/langchain_text_splitters/base.py
@@ -227,7 +227,7 @@ class TextSplitter(BaseDocumentTransformer, ABC):
         cls,
         encoding_name: str = "gpt2",
         model_name: str | None = None,
-        allowed_special: Literal["all"] | AbstractSet[str] = None,
+        allowed_special: Literal["all"] | AbstractSet[str] | None = None,
         disallowed_special: Literal["all"] | Collection[str] = "all",
         **kwargs: Any,
     ) -> Self:
@@ -304,7 +304,7 @@ class TokenTextSplitter(TextSplitter):
         self,
         encoding_name: str = "gpt2",
         model_name: str | None = None,
-        allowed_special: Literal["all"] | AbstractSet[str] = None,
+        allowed_special: Literal["all"] | AbstractSet[str] | None = None,
         disallowed_special: Literal["all"] | Collection[str] = "all",
         **kwargs: Any,
     ) -> None:
diff --git a/libs/text-splitters/uv.lock b/libs/text-splitters/uv.lock
index 6e375657b1a..c5e684af380 100644
--- a/libs/text-splitters/uv.lock
+++ b/libs/text-splitters/uv.lock
@@ -1184,7 +1184,7 @@ wheels = [
 
 [[package]]
 name = "langchain-core"
-version = "1.2.18"
+version = "1.2.19"
 source = { editable = "../core" }
 dependencies = [
     { name = "jsonpatch" },