diff --git a/docs/design/current/ui.md b/docs/design/current/ui.md
index 503b66b61..13e147344 100644
--- a/docs/design/current/ui.md
+++ b/docs/design/current/ui.md
@@ -28,4 +28,4 @@ castProxy.player == ui.player
 
 For details on adding Shaka UI to your application, see [UI library tutorial].
 
-[UI library tutorial]: https://uipreview-dot-shaka-player-demo.appspot.com/docs/api/tutorial-ui.html
+[UI library tutorial]: https://shaka-project.github.io/shaka-player/docs/api/tutorial-ui.html
diff --git a/lib/util/error.js b/lib/util/error.js
index d4e3ccda8..5eb31bf6c 100644
--- a/lib/util/error.js
+++ b/lib/util/error.js
@@ -709,7 +709,7 @@ shaka.util.Error.Code = {
    * or containers are supported by the browser.
    *
    * To see what your browser supports, you can check the JSON data dumped by
-   * http://support.shaka-player-demo.appspot.com/
+   * https://shaka-project.github.io/shaka-player/support.html
    */
   'CONTENT_UNSUPPORTED_BY_BROWSER': 4032,