diff --git a/index.html b/index.html
index 1f0352d..08e2c79 100644
--- a/index.html
+++ b/index.html
@@ -9,7 +9,7 @@
   <link href="//code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css" rel="stylesheet" type="text/css">
   <link href="//fonts.googleapis.com/css?family=Titillium+Web:700|Source+Serif+Pro:400,700|Merriweather+Sans:400,700|Source+Sans+Pro:400,300,600,700,300italic,400italic,600italic,700italic" rel="stylesheet" type="text/css">
 
-  <link rel="stylesheet" href="//demo.productionready.io/main.css">
+  <link rel="stylesheet" href="//demo.realworld.io/main.css">
 </head>
 <body>
 <div id="app"></div>
