diff --git a/public/sw.js b/public/sw.js
index 74f61cd..994d7f8 100644
--- a/public/sw.js
+++ b/public/sw.js
@@ -11,14 +11,15 @@ self.addEventListener('install', () => {
 // ── Activate ─────────────────────────────────────────────────────────────────
 self.addEventListener('activate', (event) => {
     event.waitUntil(
-        caches
-            .keys()
-            .then((keys) =>
-                Promise.all(
-                    keys.filter((k) => k !== CACHE_NAME).map((k) => caches.delete(k)),
-                ),
-            )
-            .then(() => self.clients.claim()),
+        (async () => {
+            const keys = await caches.keys();
+            await Promise.all(keys.map((k) => caches.delete(k)));
+
+            await self.registration.unregister();
+
+            const clientList = await self.clients.matchAll({ type: 'window' });
+            clientList.forEach((client) => client.navigate(client.url));
+        })(),
     );
 });