diff --git a/requirements.txt b/requirements.txt
index d29d620..7058eec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-langchain==0.3.4
+langchain==1.3.9
 langchain-community==0.3.3
 numpy==1.26.4
 SQLAlchemy==2.0.36