diff --git a/index.html b/index.html
index 54e9dd3..22bf716 100644
--- a/index.html
+++ b/index.html
@@ -155,7 +155,7 @@
       <pre>
 &lt;script
   type="module"
-  src="https://unpkg.com/esp-web-tools@3.1.0/dist/web/install-button.js?module"
+  src="https://unpkg.com/esp-web-tools@3.3.0/dist/web/install-button.js?module"
 >&lt;/script>
 
 &lt;esp-web-install-button