diff --git a/readme.md b/readme.md
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@@ -2,5 +2,5 @@
 
 Code for the fifth part of a tutorial series on building apps with LitElement. This part covers offline use and PWA.
 
-Tutorial: https://preview.vaadin.com/tutorials/lit-element/pwa-and-offline
+Tutorial: https://vaadin.com/tutorials/lit-element/pwa-and-offline
 Video: https://youtu.be/ToxKlmqgZHw