diff --git a/cypress/platform/viewer.js b/cypress/platform/viewer.js
index 105ecda71..ff70e0abe 100644
--- a/cypress/platform/viewer.js
+++ b/cypress/platform/viewer.js
@@ -36,7 +36,7 @@ const contentLoaded = function () {
       document.getElementsByTagName('body')[0].appendChild(div);
     }
 
-    graphObj.mermaid.extraDiagrams = ['/mermaid-mindmap-detector.js'];
+    graphObj.mermaid.extraDiagrams = ['/mermaid-mindmap-detector.core.mjs'];
 
     mermaid2.initialize(graphObj.mermaid);
     mermaid2.init();