diff --git a/Gemfile b/Gemfile
index f63f578..98837d2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,6 +9,6 @@ group :development, :test do
   gem 'minitest', '~> 6.0'
   gem 'minitest-mock', '~> 5.27'
   gem 'rake', '~> 13.4'
-  gem 'rubocop', '~> 1.90', require: false
+  gem 'rubocop', '~> 1.91', require: false
   gem 'simplecov', '~> 1.2', require: false
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index c3aa7bc..ae16979 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,7 +64,7 @@ GEM
       prism (>= 1.3.0)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
-    json (2.21.2)
+    json (3.0.2)
     language_server-protocol (3.17.0.6)
     lint_roller (1.1.0)
     logger (1.7.0)
@@ -138,7 +138,7 @@ GEM
     regexp_parser (2.12.0)
     reline (0.7.0)
       io-console (~> 0.5)
-    rubocop (1.90.0)
+    rubocop (1.91.0)
       json (>= 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
@@ -185,7 +185,7 @@ DEPENDENCIES
   minitest (~> 6.0)
   minitest-mock (~> 5.27)
   rake (~> 13.4)
-  rubocop (~> 1.90)
+  rubocop (~> 1.91)
   simplecov (~> 1.2)
 
 RUBY VERSION