diff --git a/requirements.txt b/requirements.txt
index 081a42a..388f0d3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 streamlit>=1.32.0
-langchain>=0.3.0
+langchain>=1.2.15
 langchain-google-genai>=3.1.0
 langchain-community>=0.3.0
 langchain-core>=0.3.0