diff --git a/packages/core/app-layout/src/components/sidebar/AppSidebar.vue b/packages/core/app-layout/src/components/sidebar/AppSidebar.vue
index ca8034b330..1bc0fe9834 100644
--- a/packages/core/app-layout/src/components/sidebar/AppSidebar.vue
+++ b/packages/core/app-layout/src/components/sidebar/AppSidebar.vue
@@ -105,7 +105,7 @@ const props = defineProps({
   },
   zIndex: {
     type: Number,
-    default: 2,
+    default: 3,
   },
   // Props that only impact mobile
   open: {