diff --git a/package.json b/package.json
index ebf535a46..c7f438108 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "expect.js": "~0.2.0",
     "jasmine-node": "~1.9.0",
     "mocha": "~1.10.0",
-    "express": "~3.3.4",
+    "express": "~4.17.1",
     "mustache": "~0.7.2"
   },
   "repository": {