diff --git a/vite.config.js b/vite.config.js
index e1784915..c54f6eb5 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -27,6 +27,17 @@ export default defineConfig({
           '*.{js,css,html,png,svg,jpg,webp}',
         ],
         runtimeCaching: [
+          {
+            urlPattern: /\/(sw\.js|registerSW\.js|manifest\.webmanifest)$/, // sw 文件
+            handler: 'NetworkFirst',
+            options: {
+              cacheName: 'critical-assets',
+              expiration: {
+                maxEntries: 3,
+                maxAgeSeconds: 4 * 60 * 60, // 4 小时
+              },
+            },
+          },
           {
             urlPattern: /\.(?:png|jpg|jpeg|svg|webp|woff|woff2)$/, // 图片文件
             handler: 'CacheFirst',