diff --git a/Proxmox-Virtual-Environment.md b/Proxmox-Virtual-Environment.md
index 87716a1..967359d 100644
--- a/Proxmox-Virtual-Environment.md
+++ b/Proxmox-Virtual-Environment.md
@@ -42,4 +42,9 @@ deb https://mirrors.ustc.edu.cn/debian-security bookworm-security main contrib
 #vim /etc/apt/sources.list.d/pve-no-subscription.list
 deb https://mirrors.ustc.edu.cn/proxmox/debian/pve bookworm pve-no-subscription
 ```
-- 配置国内LXC镜像源
\ No newline at end of file
+- 配置国内LXC镜像源
+```
+#备份源文件
+cp /usr/share/perl5/PVE/APLInfo.pm /usr/share/perl5/PVE/APLInfo.pm_back
+#更换源
+```
\ No newline at end of file