diff --git a/rag/utils/minio_conn.py b/rag/utils/minio_conn.py
index 343755109..cc5843a5a 100644
--- a/rag/utils/minio_conn.py
+++ b/rag/utils/minio_conn.py
@@ -17,7 +17,6 @@
 import logging
 import time
 from minio import Minio
-from minio.commonconfig import CopySource
 from minio.error import S3Error
 from io import BytesIO
 from common.decorator import singleton