diff --git a/package.json b/package.json
index 8fff8fa..a0fd9ad 100644
--- a/package.json
+++ b/package.json
@@ -26,5 +26,8 @@
     "svelte-loader": "^2.3.3",
     "uglifyjs-webpack-plugin": "^1.1.5",
     "webpack": "^3.10.0"
+  },
+   "engines": {
+    "node": "8.4.0"
   }
 }