diff --git a/backend/pipeline/requirements.txt b/backend/pipeline/requirements.txt
index 425764bc76..89e45bb4d3 100644
--- a/backend/pipeline/requirements.txt
+++ b/backend/pipeline/requirements.txt
@@ -1,3 +1,3 @@
 langgraph==1.2.1
-langchain-core==1.4.0
+langchain-core==1.5.3
 pydantic==2.13.4