diff --git a/package.json b/package.json
index caa1bf065dbec219a197e47081dcad1e4aa0a1ae..c5892e387a07f926d3f4532bc4721d1cbf3fa331 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "engines": {
+    "npm": "6.x",
     "node": "12.x"
   },
   "dependencies": {