diff --git a/package.json b/package.json
index c5eb0927..47460fe9 100644
--- a/package.json
+++ b/package.json
@@ -221,7 +221,7 @@
     "yaspeller": "^4.0.0"
   },
   "engines": {
-    "node": ">=4.0.0"
+    "node": ">=4.5.0"
   },
   "license": "MIT",
   "main": "server/cloudcmd.js"