diff --git a/public/docs/_examples/quickstart/dart/web/index.html b/public/docs/_examples/quickstart/dart/web/index.html
index a1e925b8fb..38eeed5e43 100644
--- a/public/docs/_examples/quickstart/dart/web/index.html
+++ b/public/docs/_examples/quickstart/dart/web/index.html
@@ -6,8 +6,8 @@
     <link rel="stylesheet" href="styles.css">
 
     <!-- #docregion loaddart -->
-    <script async src="main.dart" type="application/dart"></script>
-    <script async src="packages/browser/dart.js"></script>
+    <script defer src="main.dart" type="application/dart"></script>
+    <script defer src="packages/browser/dart.js"></script>
     <!-- #enddocregion loaddart -->
   </head>
   <body>
