diff --git a/package.json b/package.json
index 673f7dc3..053ea63d 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
     "test": "test"
   },
   "dependencies": {
-    "express": "^4.17.1",
+    "express": "^4.21.0",
     "express-http-to-https": "^1.1.4",
     "express-static-gzip": "^1.1.3",
     "gzipper": "^2.10.4"