diff --git a/package.json b/package.json
index 9bff822..80545b9 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "body-parser": "~1.16.0",
     "cookie-parser": "~1.4.3",
     "debug": "~2.6.0",
-    "express": "~4.14.1",
+    "express": "~4.21.0",
     "morgan": "~1.7.0",
     "pug": "~2.0.0-beta10",
     "serve-favicon": "~2.3.2"