diff --git a/package.json b/package.json
index 196e9ba..125640d 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,9 @@
   "name": "loopback-connector-mysql",
   "version": "3.0.0-alpha.1",
   "description": "MySQL connector for loopback-datasource-juggler",
+  "engines": {
+    "node": ">=4"
+  },  
   "main": "index.js",
   "scripts": {
     "pretest": "node pretest.js",