diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 16ecf62..3fb6d69 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,6 +1,6 @@
 # This configuration was generated by
 # `rubocop --auto-gen-config --no-offense-counts --no-auto-gen-timestamp`
-# using RuboCop version 1.64.1.
+# using RuboCop version 1.66.1.
 # The point is for the user to remove these configuration records
 # one by one as the offenses are removed from the code base.
 # Note that changes in the inspected code, or installation of new
@@ -144,7 +144,6 @@ Style/GuardClause:
     - 'lib/hawk/model/association.rb'
     - 'lib/hawk/model/lookup.rb'
     - 'lib/hawk/model/schema.rb'
-    - 'lib/hawk/polyfills.rb'
     - 'lib/hawk/rake/default_task.rb'
 
 # This cop supports safe autocorrection (--autocorrect).
diff --git a/lib/hawk/polyfills.rb b/lib/hawk/polyfills.rb
deleted file mode 100644
index 397c887..0000000
--- a/lib/hawk/polyfills.rb
+++ /dev/null
@@ -1,17 +0,0 @@
-# frozen_string_literal: true
-
-module Hawk
-  module Polyfills
-    def self.polyfill(klass, method, &impl)
-      unless klass.instance_methods.include?(method)
-        refine(klass) do
-          module_eval(&impl)
-        end
-      end
-    end
-
-    require 'hawk/polyfills/string'
-    require 'hawk/polyfills/module'
-    require 'hawk/polyfills/hash'
-  end
-end