6 files changed, 7 insertions, 7 deletions
diff --git a/guides/bug_report_templates/action_controller_gem.rb b/guides/bug_report_templates/action_controller_gem.rb
index 1d059cc2a5..8b7aa893fd 100644
--- a/guides/bug_report_templates/action_controller_gem.rb
+++ b/guides/bug_report_templates/action_controller_gem.rb
@@ -15,7 +15,7 @@ require "rack/test"
 require "action_controller/railtie"
 
 class TestApp < Rails::Application
-  config.root = File.dirname(__FILE__)
+  config.root = __dir__
   config.session_store :cookie_store, key: "cookie_store_key"
   secrets.secret_token    = "secret_token"
   secrets.secret_key_base = "secret_key_base"
diff --git a/guides/bug_report_templates/action_controller_master.rb b/guides/bug_report_templates/action_controller_master.rb
index 7644f6fe4a..3dd66c95ec 100644
--- a/guides/bug_report_templates/action_controller_master.rb
+++ b/guides/bug_report_templates/action_controller_master.rb
@@ -14,7 +14,7 @@ end
 require "action_controller/railtie"
 
 class TestApp < Rails::Application
-  config.root = File.dirname(__FILE__)
+  config.root = __dir__
   secrets.secret_token    = "secret_token"
   secrets.secret_key_base = "secret_key_base"
 
diff --git a/guides/rails_guides/helpers.rb b/guides/rails_guides/helpers.rb
index 2a193ca6b5..520aa7f7cc 100644
--- a/guides/rails_guides/helpers.rb
+++ b/guides/rails_guides/helpers.rb
@@ -15,7 +15,7 @@ module RailsGuides
     end
 
     def documents_by_section
-      @documents_by_section ||= YAML.load_file(File.expand_path("../../source/#{@language ? @language + '/' : ''}documents.yaml", __FILE__))
+      @documents_by_section ||= YAML.load_file(File.expand_path("../source/#{@language ? @language + '/' : ''}documents.yaml", __dir__))
     end
 
     def documents_flat
diff --git a/guides/source/generators.md b/guides/source/generators.md
index a554e08204..d4ed2355d4 100644
--- a/guides/source/generators.md
+++ b/guides/source/generators.md
@@ -96,7 +96,7 @@ This is the generator just created:
 
 ```ruby
 class InitializerGenerator < Rails::Generators::NamedBase
-  source_root File.expand_path("../templates", __FILE__)
+  source_root File.expand_path("templates", __dir__)
 end
 ```
 
@@ -122,7 +122,7 @@ And now let's change the generator to copy this template when invoked:
 
 ```ruby
 class InitializerGenerator < Rails::Generators::NamedBase
-  source_root File.expand_path("../templates", __FILE__)
+  source_root File.expand_path("templates", __dir__)
 
   def copy_initializer_file
     copy_file "initializer.rb", "config/initializers/#{file_name}.rb"
diff --git a/guides/source/rails_application_templates.md b/guides/source/rails_application_templates.md
index 3e99ee7021..e087834a2f 100644
--- a/guides/source/rails_application_templates.md
+++ b/guides/source/rails_application_templates.md
@@ -277,6 +277,6 @@ relative paths to your template's location.
 
 ```ruby
 def source_paths
-  [File.expand_path(File.dirname(__FILE__))]
+  [__dir__]
 end
 ```
diff --git a/guides/source/security.md b/guides/source/security.md
index 1fcb2fc91f..75522834df 100644
--- a/guides/source/security.md
+++ b/guides/source/security.md
@@ -356,7 +356,7 @@ send_file('/var/www/uploads/' + params[:filename])
 Simply pass a file name like "../../../etc/passwd" to download the server's login information. A simple solution against this, is to _check that the requested file is in the expected directory_:
 
 ```ruby
-basename = File.expand_path(File.join(File.dirname(__FILE__), '../../files'))
+basename = File.expand_path('../../files', __dir__)
 filename = File.expand_path(File.join(basename, @file.public_filename))
 raise if basename !=
      File.expand_path(File.join(File.dirname(filename), '../../../'))