diff --git a/invalid_model-serializer.gemspec b/invalid_model-serializer.gemspec
index fd54b30..bbdcf8b 100644
--- a/invalid_model-serializer.gemspec
+++ b/invalid_model-serializer.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'activemodel', '>= 6.1', '< 7.1'
   s.add_development_dependency 'json_spec', '~> 1.1'
   s.add_development_dependency 'rspec', '~> 3.7'
-  s.add_development_dependency 'rubocop', '1.31.1'
+  s.add_development_dependency 'rubocop', '1.42.0'
   s.add_development_dependency 'rubocop-rspec', '2.12.1'
   s.add_development_dependency 'simplecov', '~> 0.16'