diff --git a/package.json b/package.json
index 874b9249..f118c83b 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "cors": "^2.8.1",
     "crypto": "0.0.3",
     "debug": "2.5.1",
-    "express": "4.14.0",
+    "express": "4.21.0",
     "jsonwebtoken": "^7.2.1",
     "minimist": "1.2.0",
     "moment": "2.17.1",