diff --git a/radius-spec.gemspec b/radius-spec.gemspec
index 70912e3..b9b131d 100644
--- a/radius-spec.gemspec
+++ b/radius-spec.gemspec
@@ -33,5 +33,5 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency "rspec", "~> 3.7"
   spec.add_dependency "rubocop", ">= 1.25", "< 1.70"
-  spec.add_dependency "rubocop-rails", ">= 2.13", "< 2.22"
+  spec.add_dependency "rubocop-rails", ">= 2.13", "< 2.28"
 end