diff --git a/package.json b/package.json
index 72c346d..f650a14 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,8 @@
     "start": "node bot.js"
   },
   "engines": {
-    "node": "12.x"
+    "node": "12.x",
+    "npm": "6.x"
   },
   "keywords": [
     "rainbow",