redux.gemspec in redux-0.1.1 vs redux.gemspec in redux-0.1.2

@@ -6,16 +6,16 @@
   gem.name          = "redux"
   gem.version       = Redux::VERSION
   gem.summary       = "redux.rb"
   gem.description   = "Tiny Redux implementation in Ruby."
   gem.authors       = ["Jan Lelis"]
-  gem.email         = ["[e-mail]"]
+  gem.email         = ["[e-mail]"]
   gem.homepage      = "https://github.com/janlelis/redux.rb"
   gem.license       = "MIT"
 
   gem.files         = Dir["{**/}{.*,*}"].select{ |path| File.file?(path) && path !~ /^pkg/ }
   gem.executables   = gem.files.grep(%r{^bin/}).map{ |f| File.basename(f) }
   gem.test_files    = gem.files.grep(%r{^(test|spec|features)/})
   gem.require_paths = ["lib"]
 
-  gem.required_ruby_version = "~> 2.0"
+  gem.required_ruby_version = ">= 2.0", "< 4.0"
 end