bullet.gemspec in bullet-5.8.0 vs bullet.gemspec in bullet-5.8.1

@@ -19,9 +19,10 @@
     'source_code_uri' => 'https://github.com/flyerhzm/bullet'
   }
 
   s.license = 'MIT'
 
+  s.required_ruby_version = '>= 2.3'
   s.required_rubygems_version = '>= 1.3.6'
 
   s.add_runtime_dependency 'activesupport', '>= 3.0.0'
   s.add_runtime_dependency 'uniform_notifier', '~> 1.11'