diff --git a/.standard.yml b/.standard.yml
index 3741b18..e9efa16 100644
--- a/.standard.yml
+++ b/.standard.yml
@@ -1,3 +1,3 @@
 # For available configuration options, see:
 #   https://github.com/testdouble/standard
-ruby_version: 2.7
+ruby_version: 3.0
diff --git a/test/standard/rails_test.rb b/test/standard/rails_test.rb
index cb4125c..8c480c8 100644
--- a/test/standard/rails_test.rb
+++ b/test/standard/rails_test.rb
@@ -16,10 +16,17 @@ def test_that_it_has_a_version_number
     VersionAdded
     VersionChanged
   ].freeze
+  REMOVED_COPS = %w[
+    Lint/NumberConversion
+    Lint/RedundantSafeNavigation
+    Style/AndOr
+    Style/CollectionCompact
+    Style/FormatStringToken
+    Style/InvertibleUnlessCondition
+    Style/SymbolProc
+  ]
   def test_configures_all_rails_cops
-    expected = YAML.load_file(Pathname.new(Gem.loaded_specs["rubocop-rails"].full_gem_path).join("config/default.yml")).reject { |name, cop|
-      ["Lint/NumberConversion", "Style/AndOr", "Style/FormatStringToken", "Style/SymbolProc", "Lint/RedundantSafeNavigation", "Style/InvertibleUnlessCondition", "Style/CollectionCompact"].include?(name)
-    }.to_h
+    expected = YAML.load_file(Pathname.new(Gem.loaded_specs["rubocop-rails"].full_gem_path).join("config/default.yml")).except(*REMOVED_COPS).to_h
     actual = YAML.load_file(BASE_CONFIG)
     missing = (expected.keys - actual.keys).grep(/\//) # ignore groups like "Layout"
     extra = actual.keys - expected.keys - ["require"]