www_app.gemspec in www_app-1.0.0 vs www_app.gemspec in www_app-1.0.1

@@ -19,9 +19,11 @@
   }
   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 = '>= 2.2.0'
+
   spec.add_runtime_dependency "yajl-ruby"            , ">= 1.2"
   spec.add_runtime_dependency "escape_escape_escape" , ">= 0.2"
   spec.add_runtime_dependency "mustache"             , ">= 0.99"
 
   spec.add_development_dependency "multi_json"    , ">= 1.10.1"