diff --git a/dyndnsd.gemspec b/dyndnsd.gemspec
index 8de8bc7..075e1b4 100644
--- a/dyndnsd.gemspec
+++ b/dyndnsd.gemspec
@@ -42,6 +42,6 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rspec'
   s.add_development_dependency 'rubocop', '~> 1.22.0'
   s.add_development_dependency 'rubocop-rake', '~> 0.6.0'
-  s.add_development_dependency 'rubocop-rspec', '~> 2.5.0'
+  s.add_development_dependency 'rubocop-rspec', '~> 2.6.0'
   s.add_development_dependency 'solargraph', '~> 0.44.0'
 end