diff --git a/.gitignore b/.gitignore
index c775418b4b..0de100ca52 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@
 /coverage
 dist
 /.package.json
+package-lock.json
 /packages/babel-runtime/core-js/**/*.js
 !/packages/babel-runtime/core-js/map.js
 /packages/babel-runtime/helpers/*.js
diff --git a/package.json b/package.json
index b08c87982f..5c36287f17 100644
--- a/package.json
+++ b/package.json
@@ -50,9 +50,9 @@
     "through2": "^2.0.0",
     "uglify-js": "^2.4.16"
   },
-  "devEngines": {
-    "node": ">= 4.x <= 7.x",
-    "npm": "2.x || 3.x || 4.x"
+  "engines": {
+    "node": ">= 4.x <= 8.x",
+    "npm": ">= 2.x <= 5.x"
   },
   "nyc": {
     "all": true,