devise-onesignal.gemspec in devise-onesignal-1.2.1 vs devise-onesignal.gemspec in devise-onesignal-2.0.0

@@ -1,11 +1,11 @@
 # -*- encoding: utf-8 -*-
 require File.expand_path(File.join('..', 'lib', 'devise-onesignal', 'version'), __FILE__)
 
 Gem::Specification.new do |gem|
     gem.name                  = 'devise-onesignal'
-    gem.version               = DeviseOneSignal::VERSION
+    gem.version               = DeviseOnesignal::VERSION
     gem.platform              = Gem::Platform::RUBY
     gem.summary               = 'Implement user targeted cross-platform notifications in your Rails app'
     gem.description           = 'Implement user targeted cross-platform notifications with OneSignal & Devise in your Rails app.'
     gem.authors               = 'Jonas Hübotter'
     gem.email                 = '[e-mail]'
@@ -19,8 +19,8 @@
 
     gem.required_ruby_version = '>= 2.3'
 
     gem.add_development_dependency 'bundler', '~> 1.16'
     gem.add_development_dependency 'rake', '~> 10.0'
-    gem.add_dependency 'rails', '>= 4.0'
+    gem.add_dependency 'rails', '>= 5.0'
     gem.add_dependency 'devise', '~> 4.3'
 end