diff --git a/Gemfile b/Gemfile
index f620698..7ab98f6 100644
--- a/Gemfile
+++ b/Gemfile
@@ -7,6 +7,6 @@ gemspec
 
 gem 'minitest', '~> 5.20'
 gem 'rake', '~> 13.0'
-gem 'rubocop', '~> 1.56'
+gem 'rubocop', '~> 1.57'
 gem 'rubocop-minitest', '~> 0.31.1'
 gem 'rubocop-rake', '~> 0.6.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index dfe1c37..ef2b39c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,39 +7,37 @@ GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.2)
-    base64 (0.1.1)
     json (2.6.3)
     language_server-protocol (3.17.0.3)
     minitest (5.20.0)
     parallel (1.23.0)
-    parser (3.2.2.3)
+    parser (3.2.2.4)
       ast (~> 2.4.1)
       racc
     racc (1.7.1)
     rainbow (3.1.1)
     rake (13.0.6)
-    regexp_parser (2.8.1)
+    regexp_parser (2.8.2)
     rexml (3.2.6)
-    rubocop (1.56.3)
-      base64 (~> 0.1.1)
+    rubocop (1.57.2)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
-      parser (>= 3.2.2.3)
+      parser (>= 3.2.2.4)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
       rubocop-ast (>= 1.28.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.29.0)
+    rubocop-ast (1.30.0)
       parser (>= 3.2.1.0)
     rubocop-minitest (0.31.1)
       rubocop (>= 1.39, < 2.0)
     rubocop-rake (0.6.0)
       rubocop (~> 1.0)
     ruby-progressbar (1.13.0)
-    unicode-display_width (2.4.2)
+    unicode-display_width (2.5.0)
 
 PLATFORMS
   x86_64-linux
@@ -48,7 +46,7 @@ DEPENDENCIES
   human_languages!
   minitest (~> 5.20)
   rake (~> 13.0)
-  rubocop (~> 1.56)
+  rubocop (~> 1.57)
   rubocop-minitest (~> 0.31.1)
   rubocop-rake (~> 0.6.0)