diff --git a/backend/scripts/mermaid-validator/package.json b/backend/scripts/mermaid-validator/package.json
index 3da8658..6ba1c8d 100644
--- a/backend/scripts/mermaid-validator/package.json
+++ b/backend/scripts/mermaid-validator/package.json
@@ -4,6 +4,6 @@
   "type": "module",
   "dependencies": {
     "dompurify": "3.4.0",
-    "mermaid": "11.12.0"
+    "mermaid": "11.15.0"
   }
 }