diff --git a/cmd/template.html b/cmd/template.html
index c72634e..cf6c0ef 100644
--- a/cmd/template.html
+++ b/cmd/template.html
@@ -189,7 +189,7 @@
         loadmd();
       })()
     </script>
-    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mermaid/10.9.1/mermaid.min.js"></script>
+    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mermaid/11.3.0/mermaid.min.js"></script>
     <article id="markdown-body" class="markdown-body"></article>
   </body>
 </html>