diff --git a/package.json b/package.json
index f865e2cc..a4ccc81d 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "lozad": "1.16.0",
     "mathjax": "3.2.2",
     "medium-zoom": "1.1.0",
-    "mermaid": "11.7.0",
+    "mermaid": "11.9.0",
     "pace-js": "1.2.4",
     "pangu": "6.1.3",
     "pdfobject": "2.3.1",