lotus-utils.gemspec in lotus-utils-0.2.0 vs lotus-utils.gemspec in lotus-utils-0.3.0

@@ -15,9 +15,11 @@
 
   spec.files         = `git ls-files -- lib/* CHANGELOG.md LICENSE.md README.md lotus-utils.gemspec`.split($/)
   spec.executables   = spec.files.grep(%r{^bin/}) { |f| File.basename(f) }
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ['lib']
+  spec.required_ruby_version = '>= 2.0.0'
 
-  spec.add_development_dependency 'bundler', '~> 1.6'
-  spec.add_development_dependency 'rake',    '~> 10'
+  spec.add_development_dependency 'bundler',  '~> 1.6'
+  spec.add_development_dependency 'rake',     '~> 10'
+  spec.add_development_dependency 'minitest', '~> 5.4'
 end