diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index 8a96e59f90..0921d4f731 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -2050,14 +2050,6 @@ Style/OptionalBooleanParameter:
     - 'app/workers/unfollow_follow_worker.rb'
     - 'lib/mastodon/redis_config.rb'
 
-# Offense count: 1
-# This cop supports unsafe autocorrection (--autocorrect-all).
-# Configuration parameters: EnforcedStyle.
-# SupportedStyles: short, verbose
-Style/PreferredHashMethods:
-  Exclude:
-    - 'spec/support/matchers/model/model_have_error_on_field.rb'
-
 # Offense count: 5
 # This cop supports unsafe autocorrection (--autocorrect-all).
 # Configuration parameters: Methods.
diff --git a/spec/support/matchers/model/model_have_error_on_field.rb b/spec/support/matchers/model/model_have_error_on_field.rb
index 21632b5748..0f9c81a475 100644
--- a/spec/support/matchers/model/model_have_error_on_field.rb
+++ b/spec/support/matchers/model/model_have_error_on_field.rb
@@ -4,7 +4,7 @@ RSpec::Matchers.define :model_have_error_on_field do |expected|
   match do |record|
     record.valid? if record.errors.empty?
 
-    record.errors.has_key?(expected)
+    record.errors.key?(expected)
   end
 
   failure_message do |record|