README.md in apple_system_status-3.0.0 vs README.md in apple_system_status-3.0.1

@@ -7,10 +7,10 @@
 [![Code Climate](https://codeclimate.com/github/sue445/apple_system_status/badges/gpa.svg)](https://codeclimate.com/github/sue445/apple_system_status)
 [![Test Coverage](https://codeclimate.com/github/sue445/apple_system_status/badges/coverage.svg)](https://codeclimate.com/github/sue445/apple_system_status/coverage)
 [![Coverage Status](https://coveralls.io/repos/sue445/apple_system_status/badge.svg?branch=master&service=github)](https://coveralls.io/github/sue445/apple_system_status?branch=master)
 
 ## Requirements
-* Ruby 2.2+
+* Ruby 2.6+
 * Headless Chrome
 
 ## Installation
 
 Add this line to your application's Gemfile: