diff --git a/package.json b/package.json
index b70eb6e8e4..944dfbc7f7 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,9 @@
   "description": "Check for outdated packages",
   "main": "lib/index.js",
   "typings": "lib/index.d.ts",
+  "engines": {
+    "node": ">=4"
+  },
   "files": [
     "lib"
   ],