diff --git a/docs/overrides/main.html b/docs/overrides/main.html
index 28a6b4f..53e41f4 100644
--- a/docs/overrides/main.html
+++ b/docs/overrides/main.html
@@ -90,5 +90,22 @@
   <!-- Additional SEO -->
   <link rel="alternate" type="application/rss+xml" title="{{ config.site_name }}" href="{{ config.site_url }}sitemap.xml">
 
+  <!-- Google Tag Manager -->
+  <script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+  new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+  j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+  'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+  })(window,document,'script','dataLayer','GTM-PPHNX4P8');</script>
+  <!-- End Google Tag Manager -->
+
+  {{ super() }}
+{% endblock %}
+
+{% block content %}
+  <!-- Google Tag Manager (noscript) -->
+  <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-PPHNX4P8"
+  height="0" width="0" style="display:none;visibility:hidden" title="Google Tag Manager"></iframe></noscript>
+  <!-- End Google Tag Manager (noscript) -->
+
   {{ super() }}
 {% endblock %}