Appraisals in alarmable-0.1.2 vs Appraisals in alarmable-1.0.0

@@ -1,25 +1,7 @@
 # frozen_string_literal: true
 
-appraise 'rails-4' do
-  gem 'activejob', '4.2.10'
-  gem 'activerecord', '4.2.10'
-  gem 'activesupport', '4.2.10'
-end
-
-appraise 'rails-5.0' do
-  gem 'activejob', '5.0.6'
-  gem 'activerecord', '5.0.6'
-  gem 'activesupport', '5.0.6'
-end
-
-appraise 'rails-5.1' do
-  gem 'activejob', '5.1.4'
-  gem 'activerecord', '5.1.4'
-  gem 'activesupport', '5.1.4'
-end
-
 appraise 'rails-5.2' do
-  gem 'activejob', '5.2.0'
-  gem 'activerecord', '5.2.0'
-  gem 'activesupport', '5.2.0'
+  gem 'activejob', '~> 5.2.0'
+  gem 'activerecord', '~> 5.2.0'
+  gem 'activesupport', '~> 5.2.0'
 end