diff --git a/src/api/requirements.txt b/src/api/requirements.txt
index 23a58c0..f5bf078 100644
--- a/src/api/requirements.txt
+++ b/src/api/requirements.txt
@@ -1,6 +1,6 @@
 azure-search-documents==11.4.0
 fastapi==0.110.0
-langchain==0.1.13
+langchain==0.3.0
 loguru==0.7.2
 pydantic-settings==2.2.1
 uvicorn==0.29.0