ruby_smb.gemspec in ruby_smb-0.0.12 vs ruby_smb.gemspec in ruby_smb-0.0.13

@@ -24,9 +24,11 @@
   else
     spec.add_development_dependency 'redcarpet'
     spec.platform = Gem::Platform::RUBY
   end
 
+  spec.required_ruby_version = '>= 2.2.0'
+
   spec.add_development_dependency 'bundler'
   spec.add_development_dependency 'fivemat'
   spec.add_development_dependency 'rake'
   spec.add_development_dependency 'yard'