diff --git a/requirements.txt b/requirements.txt
index d5e9880..1328969 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ python-dotenv===1.0.1
 webdriver-manager===4.0.1
 fastapi===0.109.2
 uvicorn===0.27.1
-langchain===0.1.9
+langchain===0.1.11
 langchain-elasticsearch==0.1.0
 langchain-openai==0.0.8
 tiktoken==0.6.0