diff --git a/dashboard/index.html b/dashboard/index.html
index 5de6c42..e330d72 100644
--- a/dashboard/index.html
+++ b/dashboard/index.html
@@ -3595,7 +3595,7 @@
     <!-- Main application -->
     <script src="js/app.js"></script>
     <!-- esp-web-tools for firmware flashing (Web Serial) -->
-    <script type="module" src="https://espressif.github.io/esp-web-tools/dist/web/install-button.js"></script>
+    <script type="module" src="https://unpkg.com/esp-web-tools@10.2.1/dist/install-button.js"></script>
     <!-- Onboarding wizard -->
     <script src="js/onboard.js"></script>
     <!-- OTA firmware management -->