diff --git a/install/install.sh b/install/install.sh
index 4bfcd12023a4b03c3168c67fbb5b4abfe36a7446..e7e56c3255240b43e797c60af72a28fc90e5af96 100644
--- a/install/install.sh
+++ b/install/install.sh
@@ -207,6 +207,10 @@ if [ "${os_type}" == 'Debian' ]; then
 fi
 
 if [ "${os_type}" == 'Ubuntu' ]; then
+  if grep -q "^#.*deb http://mirrors.cloud.aliyuncs.com/ubuntu.*backports" /etc/apt/sources.list; then
+      sudo sed -i 's/^#\(.*deb http:\/\/mirrors.cloud.aliyuncs.com\/ubuntu.*backports.*\)/\1/' /etc/apt/sources.list
+      apt update
+  fi
   VERSION_CODENAME=$(cat /etc/os-release |grep VERSION_CODENAME|cut -f2 -d"=")
   sudo apt install -t ${VERSION_CODENAME}-backports cockpit -y
   echo "Cockpit allow root user"