diff --git a/service-worker.js b/service-worker.js
index 01cdb60..76896d4 100644
--- a/service-worker.js
+++ b/service-worker.js
@@ -1,6 +1,8 @@
 const CACHE_NAME = 'my-site-cache-v3';
 let urlsToCache = [
-  '/',  
+  '/',
+  '/index.html',
+  '/not_found_page.html',
   '/not_found_page.html',
   '/service-worker.js',
   '/img/ai.webp',