Index: package.json
===================================================================
--- package.json	(revision 36593)
+++ package.json	(working copy)
@@ -8,6 +8,9 @@
   },
   "author": "The WordPress Contributors",
   "license": "GPL-2.0+",
+  "engines": {
+    "node": ">=0.12.0"
+  },
   "devDependencies": {
     "autoprefixer": "~6.1.0",
     "grunt": "~0.4.5",