diff --git a/package.json b/package.json
index d5767be..07dde73 100644
--- a/package.json
+++ b/package.json
@@ -29,8 +29,8 @@
     "lint-staged": "^7.0.0"
   },
   "engines": {
-    "node": ">=6.9.0",
-    "npm": ">=3.0.0"
+    "node": ">=8.0.0",
+    "npm": ">=5.7.1"
   },
   "author": "CKSource (http://cksource.com/)",
   "license": "GPL-2.0-or-later",