diff --git a/dyndnsd.gemspec b/dyndnsd.gemspec
index 6a85301..4d07b3e 100644
--- a/dyndnsd.gemspec
+++ b/dyndnsd.gemspec
@@ -44,7 +44,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rack-test'
   s.add_development_dependency 'rake'
   s.add_development_dependency 'rspec'
-  s.add_development_dependency 'rubocop', '~> 1.87.0'
+  s.add_development_dependency 'rubocop', '~> 1.88.0'
   s.add_development_dependency 'rubocop-rake', '~> 0.7.1'
   s.add_development_dependency 'rubocop-rspec', '~> 3.10.2'
   s.add_development_dependency 'solargraph', '~> 0.58.1'