diff --git a/docs/index.html b/docs/index.html
index 2aaca16..5ac594a 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -265,7 +265,15 @@
       </div>
     </section>
 
-    <script async src="https://www.googletagmanager.com/gtag/js?id=G-XXXXXXXXXX"></script>
+    <!-- Google tag (gtag.js) -->
+    <script async src="https://www.googletagmanager.com/gtag/js?id=G-88HFXRBNLS"></script>
+    <script>
+      window.dataLayer = window.dataLayer || [];
+      function gtag() { dataLayer.push(arguments); }
+      gtag('js', new Date());
+
+      gtag('config', 'G-88HFXRBNLS');
+    </script>
     <script src="main.js"></script>
   </main>
   <footer class="footer">