diff --git a/docs/index.html b/docs/index.html
index 8233a98..c3f21e6 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -25,6 +25,7 @@
         },
     }
   </script>
+  <script src="//unpkg.com/docsify"></script>
   <script src="//unpkg.com/docsify/lib/docsify.min.js"></script>
   <script src="//unpkg.com/docsify/lib/plugins/search.js"></script>
   <script src="//unpkg.com/docsify/lib/plugins/zoom-image.js"></script>