diff --git a/backend/requirements.txt b/backend/requirements.txt
index 0a717b8f2..990d09434 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -41,7 +41,7 @@ langchain-chroma==0.1.4
 
 fake-useragent==1.5.1
 chromadb==0.5.15
-pymilvus==2.4.7
+pymilvus==2.4.9
 qdrant-client~=1.12.0
 
 sentence-transformers==3.2.0