diff --git a/requirements.txt b/requirements.txt
index 6d6ca8c..d3ca3e4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ websockets==12.0
 qdrant-client==1.12.0
 python-multipart==0.0.18
 scikit-learn==1.5.2
-langchain-core==0.3.18
+langchain-core==1.2.11
 gradio
 loguru==0.7.2
 python-dotenv==1.0.1