diff --git a/.github/workflows/check_diffs.yml b/.github/workflows/check_diffs.yml
index 33d31bad7f334..7a16b425d96e2 100644
--- a/.github/workflows/check_diffs.yml
+++ b/.github/workflows/check_diffs.yml
@@ -104,7 +104,7 @@ jobs:
           - "3.9"
           - "3.10"
           - "3.11"
-          - "3.12"
+          - "3.12.3"
     runs-on: ubuntu-latest
     defaults:
       run:
diff --git a/libs/community/langchain_community/tools/searx_search/tool.py b/libs/community/langchain_community/tools/searx_search/tool.py
index b9f4e1b25a394..da99a90b8d2ac 100644
--- a/libs/community/langchain_community/tools/searx_search/tool.py
+++ b/libs/community/langchain_community/tools/searx_search/tool.py
@@ -1,16 +1,22 @@
 """Tool for the SearxNG search API."""
-from typing import Optional
+from typing import Optional, Type
 
 from langchain_core.callbacks import (
     AsyncCallbackManagerForToolRun,
     CallbackManagerForToolRun,
 )
-from langchain_core.pydantic_v1 import Extra, Field
+from langchain_core.pydantic_v1 import BaseModel, Extra, Field
 from langchain_core.tools import BaseTool
 
 from langchain_community.utilities.searx_search import SearxSearchWrapper
 
 
+class SearxSearchQueryInput(BaseModel):
+    """Input for the SearxSearch tool."""
+
+    query: str = Field(description="query to look up on searx")
+
+
 class SearxSearchRun(BaseTool):
     """Tool that queries a Searx instance."""
 
@@ -22,6 +28,7 @@ class SearxSearchRun(BaseTool):
     )
     wrapper: SearxSearchWrapper
     kwargs: dict = Field(default_factory=dict)
+    args_schema: Type[BaseModel] = SearxSearchQueryInput
 
     def _run(
         self,
diff --git a/libs/core/pyproject.toml b/libs/core/pyproject.toml
index c4975551943ea..fde21a06e12d8 100644
--- a/libs/core/pyproject.toml
+++ b/libs/core/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "langchain-core"
-version = "0.2.8"
+version = "0.2.9"
 description = "Building applications with LLMs through composability"
 authors = []
 license = "MIT"