diff --git a/public/index.html b/public/index.html
index 482cac7..c7ce571 100644
--- a/public/index.html
+++ b/public/index.html
@@ -184,6 +184,9 @@
   <!-- Bibliotecas externas para renderizar markdown e blocos de código -->
   <script src="https://cdnjs.cloudflare.com/ajax/libs/marked/12.0.1/marked.min.js"></script>
   <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
-  <script src="app.js"></script>
+  <!-- V2 cache-busting: version timestamp -->
+  <script>
+    document.write('<script src="app.js?v=' + Date.now() + '"><\/script>');
+  </script>
 </body>
 </html>