hazard.gemspec in hazard-1.3.2 vs hazard.gemspec in hazard-1.3.3

@@ -26,8 +26,8 @@
 
   # spec.add_development_dependency 'bundler', '~> 1.13'
   spec.add_development_dependency 'rake', '~> 13.0'
   spec.add_development_dependency 'minitest', '~> 5.0'
 
-  spec.required_ruby_version = '>= 2.0'
+  spec.required_ruby_version = '>= 2.2'
 
 end