diff --git a/apps/admin/vite.config.ts b/apps/admin/vite.config.ts
index 5824d4b..9d0bcc8 100644
--- a/apps/admin/vite.config.ts
+++ b/apps/admin/vite.config.ts
@@ -28,6 +28,8 @@ export default defineConfig({
   server: {
     host: '0.0.0.0',
     port: 5173,
+    // 端口被占时直接报错退出，而不是静默换端口导致浏览器看到旧实例
+    strictPort: true,
     proxy: {
       '/api': {
         target: 'http://127.0.0.1:3001',