asciidoctor-fb2.gemspec in asciidoctor-fb2-0.6.0 vs asciidoctor-fb2.gemspec in asciidoctor-fb2-0.7.0

@@ -8,11 +8,11 @@
   s.authors = ['Marat Radchenko']
   s.email = ['[e-mail]']
   s.summary = 'Converts AsciiDoc documents to FB2 e-book formats'
   s.homepage = 'https://github.com/asciidoctor/asciidoctor-fb2'
   s.license = 'MIT'
-  s.required_ruby_version = '>= 2.4.0'
+  s.required_ruby_version = '>= 2.5.0'
 
   s.files = `git ls-files`.split("\n").reject { |f| f.match(%r{^spec/}) }
   s.executables = `git ls-files -- bin/*`.split("\n").map do |f|
     File.basename(f)
   end
@@ -23,9 +23,9 @@
   s.add_runtime_dependency 'mime-types', '~> 3.0'
 
   s.add_development_dependency 'asciidoctor-diagram', '~> 2.0'
   s.add_development_dependency 'rake', '~> 13.0'
   s.add_development_dependency 'rspec', '~> 3.12.0'
-  s.add_development_dependency 'rubocop', '~> 1.12.0'
-  s.add_development_dependency 'rubocop-rake', '~> 0.5.0'
-  s.add_development_dependency 'rubocop-rspec', '~> 2.2.0'
+  s.add_development_dependency 'rubocop', '~> 1.28.2'
+  s.add_development_dependency 'rubocop-rake', '~> 0.6.0'
+  s.add_development_dependency 'rubocop-rspec', '~> 2.10.0'
 end