diff --git a/demos/dev/example.html b/demos/dev/example.html
index 27d31e177..4ece7efa8 100644
--- a/demos/dev/example.html
+++ b/demos/dev/example.html
@@ -39,8 +39,6 @@ graph TB
 
     <script type="module">
       import mermaid from '/mermaid.esm.mjs';
-      import flowchartELK from '/mermaid-flowchart-elk.esm.mjs';
-      await mermaid.registerExternalDiagrams([flowchartELK]);
       async function render(str) {
         const { svg } = await mermaid.render('dynamic', str);
         document.getElementById('dynamicDiagram').innerHTML = svg;