diff --git a/oci/PostgreSQL/backup/Dockerfile b/oci/PostgreSQL/backup/Dockerfile
index 39dc3a6..9d56646 100644
--- a/oci/PostgreSQL/backup/Dockerfile
+++ b/oci/PostgreSQL/backup/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.10-base
+FROM images.onwalk.net/public/base/python-3.10:latest
 
 # 安装必要的软件包
 RUN apt-get update && \