diff --git a/requirements/base.txt b/requirements/base.txt
index f36d764..d4fd929 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -5,6 +5,6 @@ python-dotenv
 SQLAlchemy
 jsonpath-ng
 pandas
-langchain
+langchain==1.2.0
 langchain-openai
 jinja2
\ No newline at end of file