diff --git a/labs/04-deploy-ai/01-backend-api/acs-lc-python-api/acs-lc-python/requirements.txt b/labs/04-deploy-ai/01-backend-api/acs-lc-python-api/acs-lc-python/requirements.txt
index e01f47b..ad46673 100644
--- a/labs/04-deploy-ai/01-backend-api/acs-lc-python-api/acs-lc-python/requirements.txt
+++ b/labs/04-deploy-ai/01-backend-api/acs-lc-python-api/acs-lc-python/requirements.txt
@@ -4,6 +4,6 @@ azure-search-documents==11.4.0b8
 fastapi==0.99.1
 uvicorn==0.23.2
 openai==0.27.9
-langchain==0.0.312
+langchain==0.0.325
 tiktoken==0.4.0
 python-dotenv==1.0.0
\ No newline at end of file