diff --git a/ruby_git.gemspec b/ruby_git.gemspec
index 819d3bf..1b3bc1c 100644
--- a/ruby_git.gemspec
+++ b/ruby_git.gemspec
@@ -48,7 +48,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rake', '~> 13.0'
   spec.add_development_dependency 'redcarpet', '~> 3.5'
   spec.add_development_dependency 'rspec', '~> 3.9'
-  spec.add_development_dependency 'rubocop', '~> 0.91'
+  spec.add_development_dependency 'rubocop', '~> 1.0'
   spec.add_development_dependency 'simplecov', '0.17.1'
   spec.add_development_dependency 'yard', '~> 0.9'
   spec.add_development_dependency 'yardstick', '~> 0.9'