diff --git a/langchain/requirements.txt b/langchain/requirements.txt
index b14b701..ca99e31 100644
--- a/langchain/requirements.txt
+++ b/langchain/requirements.txt
@@ -1,3 +1,3 @@
-langchain==0.3.0
+langchain==1.3.1
 langchain-openai==0.3.0
 requests==2.33.0