diff --git a/Gemfile b/Gemfile
index 389ece2..725aa19 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ gemspec
 group :development, :test do
   # Automatic Ruby code style checking tool. Aims to enforce the
   # community-driven Ruby Style Guide.
-  gem 'rubocop', '~> 1.12.0'
+  gem 'rubocop', '~> 1.18.3'
   # Turns off all rubocop cops that are unnecessary or might conflict with rufo.
   gem 'rubocop-config-rufo', '~> 0.1.0', git: 'https://github.com/tymate/rubocop-config-rufo'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 43e3113..0475c4b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -158,7 +158,7 @@ GEM
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
     parallel (1.20.1)
-    parser (3.0.0.0)
+    parser (3.0.1.1)
       ast (~> 2.4.1)
     problem_details (0.2.2)
       rack (>= 1.1.0)
@@ -207,7 +207,7 @@ GEM
     responders (3.0.1)
       actionpack (>= 5.0)
       railties (>= 5.0)
-    rexml (3.2.4)
+    rexml (3.2.5)
     rspec (3.10.0)
       rspec-core (~> 3.10.0)
       rspec-expectations (~> 3.10.0)
@@ -221,17 +221,17 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.10.0)
     rspec-support (3.10.0)
-    rubocop (1.12.0)
+    rubocop (1.18.3)
       parallel (~> 1.10)
       parser (>= 3.0.0.0)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml
-      rubocop-ast (>= 1.2.0, < 2.0)
+      rubocop-ast (>= 1.7.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.4.1)
-      parser (>= 2.7.1.5)
+    rubocop-ast (1.7.0)
+      parser (>= 3.0.1.1)
     ruby-progressbar (1.11.0)
     sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
@@ -263,7 +263,7 @@ DEPENDENCIES
   rails (~> 6.0)
   rake
   rspec (>= 3.0.0)
-  rubocop (~> 1.12.0)
+  rubocop (~> 1.18.3)
   rubocop-config-rufo (~> 0.1.0)!
   yard
   yard-activesupport-concern
diff --git a/api-blocks.gemspec b/api-blocks.gemspec
index 586cdd7..cbc10a5 100644
--- a/api-blocks.gemspec
+++ b/api-blocks.gemspec
@@ -33,7 +33,7 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'rails', '~> 6.0'
   s.add_development_dependency 'rake'
   s.add_development_dependency 'rspec', '>= 3.0.0'
-  s.add_development_dependency 'rubocop', '1.12.0'
+  s.add_development_dependency 'rubocop', '1.18.3'
   s.add_development_dependency 'yard'
   s.add_development_dependency 'yard-activesupport-concern'