diff --git a/Gemfile b/Gemfile
index 8dfbfb0d15d..9e3fe3b0cc0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,7 +10,7 @@ group :development do
   gem 'stringex', '2.8.6'
   # > 2.1.0 causes slowdowns https://github.com/sass/sassc-ruby/issues/189
   gem 'sassc', '2.1.0'
-  gem 'rubocop', '1.65.1'
+  gem 'rubocop', '1.66.0'
   gem 'ruby-lsp', '0.17.17'
   gem 'rackup', '2.1.0'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index 255cb487151..9a2175a0430 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -108,15 +108,14 @@ GEM
     rexml (3.3.6)
       strscan
     rouge (4.3.0)
-    rubocop (1.65.1)
+    rubocop (1.66.0)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
       parser (>= 3.3.0.2)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 2.4, < 3.0)
-      rexml (>= 3.2.5, < 4.0)
-      rubocop-ast (>= 1.31.1, < 2.0)
+      rubocop-ast (>= 1.32.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
     rubocop-ast (1.32.1)
@@ -168,7 +167,7 @@ DEPENDENCIES
   nokogiri (= 1.16.7)
   rackup (= 2.1.0)
   rake (= 13.2.1)
-  rubocop (= 1.65.1)
+  rubocop (= 1.66.0)
   ruby-lsp (= 0.17.17)
   sass-globbing (= 1.1.5)
   sassc (= 2.1.0)