diff --git a/index.html b/index.html
index 8625d08..b2c3e5c 100644
--- a/index.html
+++ b/index.html
@@ -70,5 +70,10 @@
     </footer>
 
     <script type="module" src="app.js"></script>
+    <script>
+        if (typeof navigator.serviceWorker !== 'undefined') {
+          navigator.serviceWorker.register('sw.js')
+        }
+      </script>
 </body>
 </html>