diff --git a/Dockerfile_base b/Dockerfile_base
index 6cce700..b3fa9e3 100644
--- a/Dockerfile_base
+++ b/Dockerfile_base
@@ -1,5 +1,4 @@
-# FROM ubuntu:22.04
-FROM harbor.hk.crabapples.cn:22580/library/ubuntu:24.04
+FROM ubuntu:22.04
 
 ENV DEBIAN_FRONTEND=noninteractive \
     VNC_PASSWORD=123456