diff --git a/README.md b/README.md
index dcd2aa5..7c0b8ef 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 
 **ruboclean** puts `.rubocop.yml` into order. It groups the configuration into three groups:
 
-1. "Base"-configuration like `require`, `inherit_from`, etc.
+1. "Base"-configuration like `plugins`, `inherit_from`, etc.
 2. `Namespaces`
 3. `Namespace/Cops`
 
@@ -34,7 +34,7 @@ AllCops:
   - path_without_files/**/* # Will be removed if no files within pattern exist. Skip with --preserve-paths option.
 
 # Preceding comments will be removed unless the --preserve-comments option is used.
-require:
+plugins:
 - rubocop-rails # Inline comments will always be removed.
 ```
 
@@ -43,7 +43,7 @@ require:
 ```yml
 ---
 
-require:
+plugins:
 - rubocop-rails
 
 AllCops:
diff --git a/lib/ruboclean/grouper.rb b/lib/ruboclean/grouper.rb
index edd6bc2..ee540e8 100644
--- a/lib/ruboclean/grouper.rb
+++ b/lib/ruboclean/grouper.rb
@@ -2,7 +2,7 @@
 
 module Ruboclean
   # Groups the rubocop configuration items into three categories:
-  #   - base: base configuration like 'require', 'inherit_from', etc
+  #   - base: base configuration like 'plugins', 'inherit_from', etc
   #   - namespaces: every item which does **not** include an "/"
   #   - cops: every item which **includes** an "/"
   class Grouper
diff --git a/test/fixtures/00_expected_output.yml b/test/fixtures/00_expected_output.yml
index 24b80c3..7b18718 100644
--- a/test/fixtures/00_expected_output.yml
+++ b/test/fixtures/00_expected_output.yml
@@ -3,7 +3,7 @@
 inherit_from:
 - shared.yml
 
-require:
+plugins:
 - rubocop-rails
 
 AllCops:
diff --git a/test/fixtures/00_expected_output_with_preserved_comments.yml b/test/fixtures/00_expected_output_with_preserved_comments.yml
index 76c0d1e..1a8307c 100644
--- a/test/fixtures/00_expected_output_with_preserved_comments.yml
+++ b/test/fixtures/00_expected_output_with_preserved_comments.yml
@@ -4,8 +4,8 @@
 inherit_from:
 - shared.yml
 
-# preceding require: comment, wrongly indented
-require:
+# preceding plugins: comment, wrongly indented
+plugins:
 - rubocop-rails
 
 # multiline
diff --git a/test/fixtures/00_expected_output_with_preserved_paths.yml b/test/fixtures/00_expected_output_with_preserved_paths.yml
index 1081ee1..eea17fa 100644
--- a/test/fixtures/00_expected_output_with_preserved_paths.yml
+++ b/test/fixtures/00_expected_output_with_preserved_paths.yml
@@ -3,7 +3,7 @@
 inherit_from:
 - shared.yml
 
-require:
+plugins:
 - rubocop-rails
 
 AllCops:
diff --git a/test/fixtures/00_input.yml b/test/fixtures/00_input.yml
index bb47ad1..b342173 100644
--- a/test/fixtures/00_input.yml
+++ b/test/fixtures/00_input.yml
@@ -25,8 +25,8 @@ AllCops:
   - file_exists.rb
   - subdirectory/file_exists.rb
 
-  # preceding require: comment, wrongly indented
-require:
+  # preceding plugins: comment, wrongly indented
+plugins:
 - rubocop-rails
 
 
diff --git a/test/fixtures/01_expected_output_without_require_block.yml b/test/fixtures/01_expected_output_without_plugins_block.yml
similarity index 100%
rename from test/fixtures/01_expected_output_without_require_block.yml
rename to test/fixtures/01_expected_output_without_plugins_block.yml
diff --git a/test/fixtures/01_input_without_require_block.yml b/test/fixtures/01_input_without_plugins_block.yml
similarity index 100%
rename from test/fixtures/01_input_without_require_block.yml
rename to test/fixtures/01_input_without_plugins_block.yml
diff --git a/test/ruboclean/grouper_test.rb b/test/ruboclean/grouper_test.rb
index c27d7ab..10767af 100644
--- a/test/ruboclean/grouper_test.rb
+++ b/test/ruboclean/grouper_test.rb
@@ -16,7 +16,7 @@ def test_group_config_with_empty_configuration
     end
 
     def test_group_config_only_base
-      config_hash = { "require" => ["rubocop-rails"] }
+      config_hash = { "plugins" => ["rubocop-rails"] }
 
       group_config_with(config_hash).tap do |result|
         assert_equal 3, result.keys.size
diff --git a/test/ruboclean/orderer_test.rb b/test/ruboclean/orderer_test.rb
index 9bcf3c0..e46bcd3 100644
--- a/test/ruboclean/orderer_test.rb
+++ b/test/ruboclean/orderer_test.rb
@@ -6,8 +6,8 @@ module Ruboclean
   class OrdererTest < BaseTest
     def test_order_all
       input = { "Foo/Foo" => nil, "Foo/Faa" => nil, "Baz" => nil,
-                "Bar" => nil, "require" => nil, "inherit_from" => nil }
-      output = { "inherit_from" => nil, "require" => nil, "Bar" => nil,
+                "Bar" => nil, "plugins" => nil, "inherit_from" => nil }
+      output = { "inherit_from" => nil, "plugins" => nil, "Bar" => nil,
                  "Baz" => nil, "Foo/Faa" => nil, "Foo/Foo" => nil }
 
       assert_ordered input, output
@@ -28,8 +28,8 @@ def test_order_without_namespaces
     end
 
     def test_order_without_cops
-      input = { "Baz" => nil, "Bar" => nil, "require" => nil }
-      output = { "require" => nil, "Bar" => nil, "Baz" => nil }
+      input = { "Baz" => nil, "Bar" => nil, "plugins" => nil }
+      output = { "plugins" => nil, "Bar" => nil, "Baz" => nil }
 
       assert_ordered input, output
     end
diff --git a/test/ruboclean/runner_test.rb b/test/ruboclean/runner_test.rb
index 07c1d1e..8951321 100644
--- a/test/ruboclean/runner_test.rb
+++ b/test/ruboclean/runner_test.rb
@@ -90,13 +90,13 @@ def test_run_with_directory_path_that_does_not_have_rubocop_yaml
       assert_equal "input path does not exist: '/tmp/.rubocop.yml'", error.message
     end
 
-    def test_run_without_require_block
-      using_fixture_files("01_input_without_require_block.yml") do |fixture_path|
+    def test_run_without_plugins_block
+      using_fixture_files("01_input_without_plugins_block.yml") do |fixture_path|
         arguments = [fixture_path]
         Ruboclean::Runner.new(arguments).run!
 
         assert_equal(
-          fixture_file_path("01_expected_output_without_require_block.yml").read,
+          fixture_file_path("01_expected_output_without_plugins_block.yml").read,
           Pathname.new(fixture_path).read
         )
       end