diff --git a/public/index.html b/public/index.html
index 00e8087..fd19247 100644
--- a/public/index.html
+++ b/public/index.html
@@ -24,5 +24,13 @@
   </head>
   <body>
     <div id="app"></div>
+        <!-- sw.js -->
+    <script>
+        if ("serviceWorker" in navigator) {
+            window.addEventListener("load", function () {
+                navigator.serviceWorker.register("./sw.js");
+            });
+        }
+    </script>
   </body>
 </html>
diff --git a/sw.js b/public/sw.js
similarity index 100%
rename from sw.js
rename to public/sw.js
