diff --git a/Library/.rubocop_ci.yml b/Library/.rubocop_ci.yml
new file mode 100644
index 00000000000000..632e4cb49737ea
--- /dev/null
+++ b/Library/.rubocop_ci.yml
@@ -0,0 +1,8 @@
+# Inherit from ./.rubocop.yml.
+inherit_from: ./.rubocop.yml
+
+Homebrew/NoFileutilsRmrf:
+  Enabled: true
+  Include:
+    - "/**/Casks/**/*.rb"
+    - "**/Casks/**/*.rb"
diff --git a/Library/Homebrew/style.rb b/Library/Homebrew/style.rb
index 7793f003e70c2b..a734a174a241bf 100644
--- a/Library/Homebrew/style.rb
+++ b/Library/Homebrew/style.rb
@@ -157,6 +157,11 @@ def self.run_rubocop(files, output_type,
         args << "--config" << (HOMEBREW_REPOSITORY/"docs/docs_rubocop_style.yml")
       elsif files.any? { |f| f.to_s.start_with? HOMEBREW_LIBRARY_PATH }
         base_dir = HOMEBREW_LIBRARY_PATH
+      # If we're in GitHub Actions, use the CI config.
+      # TODO: Remove this once we're done incrementally enabling new custom cops.
+      elsif GitHub::Actions.env_set?
+        args << "--config" << (HOMEBREW_LIBRARY/".rubocop_ci.yml")
+        base_dir = HOMEBREW_LIBRARY
       else
         args << "--config" << (HOMEBREW_LIBRARY/".rubocop.yml")
         base_dir = HOMEBREW_LIBRARY if files.any? { |f| f.to_s.start_with? HOMEBREW_LIBRARY }