diff --git a/miniflux/templates/app_header.php b/miniflux/templates/app_header.php
index 2c03dec..65b7ca7 100644
--- a/miniflux/templates/app_header.php
+++ b/miniflux/templates/app_header.php
@@ -4,8 +4,8 @@
         <meta charset="utf-8">
         <meta name="viewport" content="width=device-width, initial-scale=1.0">
         <title>miniflux</title>
-        <link href="./assets/css/app.css?v2" rel="stylesheet" media="screen">
-        <script type="text/javascript" src="./assets/js/app.js?v1" defer></script>
+        <link href="./assets/css/app.css?v<?= filemtime('assets/css/app.css') ?>" rel="stylesheet" media="screen">
+        <script type="text/javascript" src="./assets/js/app.js?v<?= filemtime('assets/js/app.js') ?>" defer></script>
     </head>
     <body>
         <header>
