diff --git a/Gemfile b/Gemfile
index a253525..b2f91eb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -15,7 +15,7 @@ group :development, :test do
 end
 
 group :development do
-  gem "rubocop", "~> 1.79", require: false
+  gem "rubocop", "~> 1.80", require: false
   gem "rubocop-rake", require: false
   gem "rubocop-rspec", require: false
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 43166a3..bcd1ad7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -30,7 +30,7 @@ GEM
     racc (1.8.1)
     rainbow (3.1.1)
     rake (13.3.0)
-    regexp_parser (2.10.0)
+    regexp_parser (2.11.2)
     rexml (3.4.1)
     rspec (3.13.0)
       rspec-core (~> 3.13.0)
@@ -45,7 +45,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.13.0)
     rspec-support (3.13.1)
-    rubocop (1.79.0)
+    rubocop (1.80.0)
       json (~> 2.3)
       language_server-protocol (~> 3.17.0.2)
       lint_roller (~> 1.1.0)
@@ -55,7 +55,6 @@ GEM
       regexp_parser (>= 2.9.3, < 3.0)
       rubocop-ast (>= 1.46.0, < 2.0)
       ruby-progressbar (~> 1.7)
-      tsort (>= 0.2.0)
       unicode-display_width (>= 2.4.0, < 4.0)
     rubocop-ast (1.46.0)
       parser (>= 3.3.7.2)
@@ -77,8 +76,7 @@ GEM
     simplecov-html (0.13.2)
     simplecov_json_formatter (0.1.4)
     thor (1.4.0)
-    tsort (0.2.0)
-    unicode-display_width (3.1.4)
+    unicode-display_width (3.1.5)
       unicode-emoji (~> 4.0, >= 4.0.4)
     unicode-emoji (4.0.4)
     vcr (6.3.1)
@@ -99,7 +97,7 @@ DEPENDENCIES
   rake (~> 13.3)
   rodiff!
   rspec (~> 3.12)
-  rubocop (~> 1.79)
+  rubocop (~> 1.80)
   rubocop-rake
   rubocop-rspec
   simplecov (~> 0.22.0)