diff --git a/packages/@hec.js/ui/lib/src/notify.js b/packages/@hec.js/ui/lib/src/notify.js
index 07f722a..491dfcd 100644
--- a/packages/@hec.js/ui/lib/src/notify.js
+++ b/packages/@hec.js/ui/lib/src/notify.js
@@ -74,7 +74,7 @@ export function onVisible(node) {
       }
     }, {
       root: root,
-      rootMargin: '256px',
+      rootMargin: '512px',
     }));
   }