diff --git a/requirements.txt b/requirements.txt
index cb1fcb0c..42e39e71 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ evaluate==0.4.3
 hnswlib==0.8.0
 jsonschema==4.23.0
 kaleido==0.2.1
-langchain==0.3.0
+langchain==0.3.9
 langchain-community==0.3.0
 levenshtein==0.26.0
 lxml==5.3.0