diff --git a/packages/dialog/src/dialog.vue b/packages/dialog/src/dialog.vue
index 47849b3eb..19c6b0c91 100644
--- a/packages/dialog/src/dialog.vue
+++ b/packages/dialog/src/dialog.vue
@@ -37,6 +37,10 @@ export default {
     },
     lockOnScroll: {
       default: true
+    },
+    zIndex: {
+      type: [String, Number],
+      default: 2500
     }
   },