diff --git a/package.json b/package.json
index afa1630..72c346d 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,9 @@
     "test": "echo \"Error: no test specified\" && exit 1",
     "start": "node bot.js"
   },
+  "engines": {
+    "node": "12.x"
+  },
   "keywords": [
     "rainbow",
     "bot",