diff --git a/.rubocop.yml b/.rubocop.yml
index f2f079b0de..3c765d5b1d 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -156,3 +156,7 @@ Style/RedundantReturn:
 Style/Semicolon:
   Enabled: true
   AllowAsExpressionSeparator: true
+
+# Prefer Foo.method over Foo::method
+Style/ColonMethodCall:
+  Enabled: true
diff --git a/activerecord/test/cases/fixtures_test.rb b/activerecord/test/cases/fixtures_test.rb
index c92edc6f45..184b750161 100644
--- a/activerecord/test/cases/fixtures_test.rb
+++ b/activerecord/test/cases/fixtures_test.rb
@@ -1186,7 +1186,7 @@ class CustomNameForFixtureOrModelTest < ActiveRecord::TestCase
   end
 
   def test_table_name_is_defined_in_the_model
-    assert_equal "randomly_named_table2", ActiveRecord::FixtureSet::all_loaded_fixtures["admin/randomly_named_a9"].table_name
+    assert_equal "randomly_named_table2", ActiveRecord::FixtureSet.all_loaded_fixtures["admin/randomly_named_a9"].table_name
     assert_equal "randomly_named_table2", Admin::ClassNameThatDoesNotFollowCONVENTIONS1.table_name
   end
 end
diff --git a/railties/test/generators/api_app_generator_test.rb b/railties/test/generators/api_app_generator_test.rb
index 857124b23a..9c523ad372 100644
--- a/railties/test/generators/api_app_generator_test.rb
+++ b/railties/test/generators/api_app_generator_test.rb
@@ -13,7 +13,7 @@ class ApiAppGeneratorTest < Rails::Generators::TestCase
     Rails.application = TestApp::Application
     super
 
-    Kernel::silence_warnings do
+    Kernel.silence_warnings do
       Thor::Base.shell.send(:attr_accessor, :always_force)
       @shell = Thor::Base.shell.new
       @shell.send(:always_force=, true)
diff --git a/railties/test/generators/shared_generator_tests.rb b/railties/test/generators/shared_generator_tests.rb
index 97d43af60a..aa577e4234 100644
--- a/railties/test/generators/shared_generator_tests.rb
+++ b/railties/test/generators/shared_generator_tests.rb
@@ -9,7 +9,7 @@ module SharedGeneratorTests
     super
     Rails::Generators::AppGenerator.instance_variable_set("@desc", nil)
 
-    Kernel::silence_warnings do
+    Kernel.silence_warnings do
       Thor::Base.shell.send(:attr_accessor, :always_force)
       @shell = Thor::Base.shell.new
       @shell.send(:always_force=, true)