allure_turnip.gemspec in allure_turnip-0.3.0 vs allure_turnip.gemspec in allure_turnip-0.3.1

@@ -1,10 +1,10 @@
 # -*- encoding: utf-8 -*-
 $LOAD_PATH.unshift File.expand_path('../lib', __FILE__)
 require 'allure_turnip/version'
 
 Gem::Specification.new do |s|
-  s.required_ruby_version = '>= 2.3'
+  s.required_ruby_version = '>= 2.4'
   s.name          = 'allure_turnip'
   s.version       = AllureTurnip::Version::STRING
   s.platform      = Gem::Platform::RUBY
   s.authors       = ['aha-oretama']
   s.email         = ['[e-mail]']