diff --git a/requirements.txt b/requirements.txt
index 36459684e..11add25e0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 streamlit>=1.28
-langchain>=0.0.217
+langchain==0.0.350
 openai>=1.2
 duckduckgo-search
 anthropic>=0.3.0