diff --git a/tools/requirements-llm.txt b/tools/requirements-llm.txt
index 8d8e2bc9..ffaa0b4a 100644
--- a/tools/requirements-llm.txt
+++ b/tools/requirements-llm.txt
@@ -7,7 +7,7 @@
 # - Use strict X.Y.Z pins for direct workflow dependencies.
 # - Do not pin `langchain-core` directly here; let the selected `langchain`
 #   release resolve a mutually compatible core version.
-langchain==1.3.9
+langchain==1.3.10
 langchain-community==0.4.2
 langchain-openai==1.3.2
 langchain-anthropic==1.4.6