diff --git a/package.json b/package.json
index 3cc6a85ce9..c0b48e8d90 100644
--- a/package.json
+++ b/package.json
@@ -79,5 +79,8 @@
   "format": "es6",
   "directories": {
     "lib": "src"
+  },
+  "engines": {
+    "npm": "~2.0.0"
   }
 }