chart.gemspec in pageflow-chart-2.5.0 vs chart.gemspec in pageflow-chart-2.6.0

@@ -14,20 +14,20 @@
 
   spec.files         = `git ls-files`.split($/)
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ['lib']
 
-  spec.required_ruby_version = '~> 2.1'
+  spec.required_ruby_version = '>= 2.1'
 
-  spec.add_runtime_dependency 'pageflow', ['>= 15.7', '< 17']
+  spec.add_runtime_dependency 'pageflow', ['>= 15.7', '< 18']
   spec.add_runtime_dependency 'nokogiri', '~> 1.0'
   spec.add_runtime_dependency 'pageflow-public-i18n', '~> 1.0'
 
-  spec.add_development_dependency 'pageflow-support', ['>= 15.0', '< 17']
   spec.add_development_dependency 'bundler', ['>= 1.0', '< 3']
-  spec.add_development_dependency 'rake', '~> 12.0'
-  spec.add_development_dependency 'rspec-rails', '~> 3.0'
   spec.add_development_dependency 'factory_bot_rails', '~> 4.8'
+  spec.add_development_dependency 'pageflow-support', ['>= 15.0', '< 18']
+  spec.add_development_dependency 'rake', '~> 12.0'
+  spec.add_development_dependency 'rspec-rails', '~> 6.0'
   spec.add_development_dependency 'webmock', '~> 3.0'
 
   # Semantic versioning rake tasks
   spec.add_development_dependency 'semmy', '~> 1.0'
 end