diff --git a/requirements/base.txt b/requirements/base.txt
index 25a70dd..ea5a0cb 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -4,7 +4,7 @@ pydantic
 python-dotenv
 jsonpath-ng
 pandas
-langchain
+langchain==1.2.11
 langchain-openai
 jinja2
 termcolor