diff --git a/public/views/index.ejs b/public/views/index.ejs
index e289458..4ab3cde 100644
--- a/public/views/index.ejs
+++ b/public/views/index.ejs
@@ -207,6 +207,7 @@
 	<script src="//ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
     <script src="//cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
 	<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" defer></script>
+    <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/handlebars.js/4.0.5/handlebars.min.js" defer></script>
     <script src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/4.16.4/lodash.min.js" defer></script>
     <%- include build/cover-scripts %>
 </body>
diff --git a/public/views/slide.ejs b/public/views/slide.ejs
index 679bed2..398f40b 100644
--- a/public/views/slide.ejs
+++ b/public/views/slide.ejs
@@ -103,6 +103,7 @@
         <% } %>
         <script src="//ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
         <script src="//cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
+        <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/handlebars.js/4.0.5/handlebars.min.js" defer></script>
         <script src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/4.16.4/lodash.min.js" defer></script>
         <script src="//cdnjs.cloudflare.com/ajax/libs/viz.js/1.3.0/viz.js" defer></script>
         <%- include build/slide-scripts %>