diff --git a/demo/astro.config.mjs b/demo/astro.config.mjs
index 1ef409f..944d6fe 100644
--- a/demo/astro.config.mjs
+++ b/demo/astro.config.mjs
@@ -13,7 +13,7 @@ export default defineConfig({
   site: 'https://ayo.ayco.io',
   integrations: [
     serviceWorker({
-      path: './src/example_sw.js',
+      path: './src/sw.ts',
       presets: [staleWhileRevalidate(), deleteOldCaches()],
       customRoutes: [
         // '/threads'
diff --git a/demo/src/example_sw.js b/demo/src/sw.ts
similarity index 100%
rename from demo/src/example_sw.js
rename to demo/src/sw.ts