diff --git a/package.json b/package.json
index 4d55a3e77..2d6189aeb 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "chai": "^4.2.0",
     "eslint": "^8.4.1",
     "eslint-config-standard": "^17.1.0",
-    "express": "^4.14.0",
+    "express": "^5.1.0",
     "gh-pages": "^6.1.0",
     "highlight.js": "^11.9.0",
     "jest-worker": "^29.7.0",