diff --git a/src/upgrade.sh b/src/upgrade.sh
index 6076a53..a078ba3 100755
--- a/src/upgrade.sh
+++ b/src/upgrade.sh
@@ -184,6 +184,9 @@ function upgrade_114_to_115() {
     sudo wget -O /etc/fonts/local.conf $fonts_config
     fc-cache -f
 
+    ext_source="https://gitlab.aiursoft.cn/anduin/anduinos/-/blob/1.4/src/mods/29-gnome-extension-anduinos-switcher/switcher@anduinos/extension.js?ref_type=heads"
+    sudo wget -O /usr/share/gnome-shell/extensions/switcher@anduinos/extension.js $ext_source
+
     apt list --installed | grep software-properties-gtk || install_spg
 
     judge "Upgrade from 1.1.4 to 1.1.5 completed"