diff --git a/CHANGELOG.md b/CHANGELOG.md
index 27ee59e3b..aa56c6c11 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 #### Features
 
+* [#2497](https://github.com/ruby-grape/grape/pull/2497): Update RuboCop to 1.66.1 - [@ericproulx](https://github.com/ericproulx).
 * Your contribution here.
 
 #### Fixes
diff --git a/Gemfile b/Gemfile
index 8df676a00..17972e469 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,9 +10,9 @@ group :development, :test do
   gem 'builder', require: false
   gem 'bundler'
   gem 'rake'
-  gem 'rubocop', '1.64.1', require: false
-  gem 'rubocop-performance', '1.21.0', require: false
-  gem 'rubocop-rspec', '3.0.1', require: false
+  gem 'rubocop', '1.66.1', require: false
+  gem 'rubocop-performance', '1.21.1', require: false
+  gem 'rubocop-rspec', '3.0.5', require: false
 end
 
 group :development do
diff --git a/grape.gemspec b/grape.gemspec
index bdb4ba1c1..a5d7c57a0 100644
--- a/grape.gemspec
+++ b/grape.gemspec
@@ -21,11 +21,11 @@ Gem::Specification.new do |s|
     'rubygems_mfa_required' => 'true'
   }
 
-  s.add_runtime_dependency 'activesupport', '>= 6'
-  s.add_runtime_dependency 'dry-types', '>= 1.1'
-  s.add_runtime_dependency 'mustermann-grape', '~> 1.1.0'
-  s.add_runtime_dependency 'rack', '>= 2'
-  s.add_runtime_dependency 'zeitwerk'
+  s.add_dependency 'activesupport', '>= 6'
+  s.add_dependency 'dry-types', '>= 1.1'
+  s.add_dependency 'mustermann-grape', '~> 1.1.0'
+  s.add_dependency 'rack', '>= 2'
+  s.add_dependency 'zeitwerk'
 
   s.files = Dir['lib/**/*', 'CHANGELOG.md', 'CONTRIBUTING.md', 'README.md', 'grape.png', 'UPGRADING.md', 'LICENSE', 'grape.gemspec']
   s.require_paths = ['lib']