diff --git a/dyndnsd.gemspec b/dyndnsd.gemspec
index c9cc1c2..e2bc091 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', '~> 1.77.0'
+  s.add_development_dependency 'rubocop', '~> 1.78.0'
   s.add_development_dependency 'rubocop-rake', '~> 0.7.1'
   s.add_development_dependency 'rubocop-rspec', '~> 3.6.0'
   s.add_development_dependency 'solargraph', '~> 0.55.0'