diff --git a/package.json b/package.json
index bf1ddb4..d21e957 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
     "body-parser": "^1.5.0",
     "es6-promise": "^3.0.2",
     "es6-shim": "^0.33.13",
-    "express": "4.14.0",
+    "express": "4.21.1",
     "express-content-length-validator": "1.0.0",
     "helmet": "0.11.0",
     "lodash": "^4.6.1",