diff --git a/requirements.txt b/requirements.txt
index 65abdd2..321834d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,4 +5,4 @@ openai>=0.26.0
 psutil
 jcloud
 jina-hubble-sdk
-langchain
\ No newline at end of file
+langchain==0.0.153
\ No newline at end of file