Gemfile in active_admin_datetimepicker-0.7.3 vs Gemfile in active_admin_datetimepicker-0.7.4

@@ -2,23 +2,22 @@
 
 # Specify your gem's dependencies in active_admin_datetimepicker.gemspec
 gemspec
 
 group :test do
-  default_rails_version = '5.2.1'
-  default_activeadmin_version = '2.0.0'
+  default_rails_version = '6.0.0'
+  default_activeadmin_version = '2.6.0'
 
   gem 'rails', "~> #{ENV['RAILS'] || default_rails_version}"
   gem 'activeadmin', "~> #{ENV['AA'] || default_activeadmin_version}"
 
   gem 'sprockets-rails', '3.0.4'
   gem 'rspec-rails'
   gem 'coveralls', require: false # Test coverage website. Go to https://coveralls.io
   gem 'sass-rails'
-  gem 'sqlite3', '~> 1.3.6'
+  gem 'sqlite3', '~> 1.4.0'
   gem 'launchy'
   gem 'database_cleaner'
   gem 'capybara'
-  gem 'selenium-webdriver'
-  gem 'chromedriver-helper'
+  gem 'webdrivers'
   gem 'byebug'
 end