diff --git a/Gemfile b/Gemfile
index 16f58d1..5363986 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,7 +11,7 @@ group :development, :test do
   gem 'rbs', '~> 4.0', require: false
   gem 'redcarpet', '~> 3.6', require: false
   gem 'rspec', '~> 3.13'
-  gem 'rubocop', '~> 1.87', require: false
+  gem 'rubocop', '~> 1.88', require: false
   gem 'rubocop-performance', require: false
   gem 'rubocop-rake', require: false
   gem 'rubocop-rspec', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 63167e2..217e227 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,7 +38,7 @@ GEM
       rspec (~> 3.0)
       rspec-files (~> 1.0)
       rspec-memory (~> 1.0)
-    async-websocket (0.30.0)
+    async-websocket (0.30.1)
       async-http (~> 0.76)
       protocol-http (~> 0.34)
       protocol-rack (~> 0.7)
@@ -49,7 +49,7 @@ GEM
       bundler (>= 1.2.0)
       thor (~> 1.0)
     concurrent-ruby (1.3.6)
-    console (1.34.3)
+    console (1.36.0)
       fiber-annotation
       fiber-local (~> 1.1)
       json
@@ -73,9 +73,9 @@ GEM
     fiber-storage (1.0.1)
     fileutils (1.8.0)
     io-endpoint (0.17.2)
-    io-event (1.16.0)
-    io-stream (0.13.0)
-    json (2.19.8)
+    io-event (1.16.2)
+    io-stream (0.13.1)
+    json (2.19.9)
     language_server-protocol (3.17.0.5)
     lint_roller (1.1.0)
     listen (3.10.0)
@@ -104,7 +104,7 @@ GEM
       protocol-http (~> 0.58)
       rack (>= 1.0)
     protocol-url (0.4.0)
-    protocol-websocket (0.21.0)
+    protocol-websocket (0.21.1)
       protocol-http (~> 0.2)
     racc (1.8.1)
     rack (3.2.6)
@@ -113,7 +113,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rbs (4.0.2)
+    rbs (4.0.3)
       logger
       prism (>= 1.6.0)
       tsort
@@ -136,7 +136,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.7)
-    rubocop (1.87.0)
+    rubocop (1.88.0)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
@@ -231,7 +231,7 @@ DEPENDENCIES
   rbs (~> 4.0)
   redcarpet (~> 3.6)
   rspec (~> 3.13)
-  rubocop (~> 1.87)
+  rubocop (~> 1.88)
   rubocop-performance
   rubocop-rake
   rubocop-rspec