diff --git a/181-google-analytics/google-analytics.html b/181-google-analytics/google-analytics.html
index 42127fbb..313a5a3c 100644
--- a/181-google-analytics/google-analytics.html
+++ b/181-google-analytics/google-analytics.html
@@ -1,17 +1,20 @@
 <!-- Global site tag (gtag.js) - Google Analytics -->
-<script async src="https://www.googletagmanager.com/gtag/js?id=UA-160622973-1"></script>
+<script async src="https://www.googletagmanager.com/gtag/js?id=GT-XXXXXX"></script>
 <script>
   window.dataLayer = window.dataLayer || [];
   function gtag(){dataLayer.push(arguments);}
   gtag('js', new Date());
 
-  gtag('config', 'UA-160622973-1');
+  gtag('config', 'GT-XXXXXX');
 
   $(document).on('change', 'select', function(e) {
-    ga('send', 'event', 'widget', 'select data', $(e.currentTarget).val());
+    gtag('event', 'widget', {
+      action: 'select data',
+      label: $(e.currentTarget).val()
+    });
   });
 
   $(document).on('click', 'button', function() {
-    ga('send', 'event', 'button', 'plot data');
+    gtag('event', 'button', { action: 'update plot' });
   });
 </script>