diff --git a/py3/ailangchain/requirements.txt b/py3/ailangchain/requirements.txt
index 3aa20ad9..4b214905 100644
--- a/py3/ailangchain/requirements.txt
+++ b/py3/ailangchain/requirements.txt
@@ -1,4 +1,4 @@
-langchain==0.0.329
+langchain==0.1.11
 openai==0.27.2
 faiss-cpu==1.7.3
 detectron2 @ git+https://github.com/facebookresearch/detectron2.git@e2ce8dc1ab097891395d324abaffe9cf298503d1