diff --git a/docs/index.html b/docs/index.html
index 5ad51b594..813e84f24 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -27,7 +27,14 @@
     <link rel="stylesheet" href="//cdn.jsdelivr.net/npm/mermaid/dist/mermaid.min.css" />
     <link rel="stylesheet" href="//unpkg.com/docsify/lib/themes/vue.css" />
     <link rel="stylesheet" href="_media/css/style.css" />
-    <script src="//cdn.jsdelivr.net/npm/mermaid/dist/mermaid.min.js"></script>
+
+<!-- 
+	changed mermaid plugin version, based on https://stackoverflow.com/questions/76530311/mermaid-in-docsify-return-object-promise 
+	old version:
+    <script src="//cdn.jsdelivr.net/npm/mermaid/dist/mermaid.min.js"></script> 
+<!-- -->
+    <script src="//cdn.jsdelivr.net/npm/mermaid@9.4.3/dist/mermaid.min.js"></script>
+
     <script src="//unpkg.com/vis-network/standalone/umd/vis-network.min.js"></script>
 </head>
 
diff --git a/package.json b/package.json
index d5d67b672..e3e9b3c38 100644
--- a/package.json
+++ b/package.json
@@ -10,5 +10,8 @@
         "@semantic-release/commit-analyzer": "^9.0.2",
         "@semantic-release/release-notes-generator": "^10.0.3",
         "semantic-release": "^19.0.5"
+    },
+    "dependencies": {
+        "docsify-cli": "^4.4.4"
     }
 }