diff --git a/Rakefile b/Rakefile

index d7278cc..9b3234b 100644

--- a/Rakefile

+++ b/Rakefile

@@ -1,3 +1,4 @@

+require "bundler"

 require "bundler/gem_tasks"

 task default: :test

diff --git a/test/parser/test_inject_anchors_filter.rb b/test/parser/test_inject_anchors_filter.rb

index 160da4c..27cf409 100644

--- a/test/parser/test_inject_anchors_filter.rb

+++ b/test/parser/test_inject_anchors_filter.rb

@@ -1,6 +1,6 @@

 # frozen_string_literal: true

-require 'test_helper'

+require_relative '../test_helper'

 class TestInjectAnchorsFilter < Minitest::Test

   include TestHelpers

diff --git a/test/parser/test_invalid_options.rb b/test/parser/test_invalid_options.rb

index db2ad38..8c83fff 100644

--- a/test/parser/test_invalid_options.rb

+++ b/test/parser/test_invalid_options.rb

@@ -1,6 +1,6 @@

 # frozen_string_literal: true

-require 'test_helper'

+require_relative '../test_helper'

 class TestInvalidOptions < Minitest::Test

   BASE_HTML = '
h1
'

diff --git a/test/parser/test_ordered_list.rb b/test/parser/test_ordered_list.rb

index c360c87..c2b6785 100644

--- a/test/parser/test_ordered_list.rb

+++ b/test/parser/test_ordered_list.rb

@@ -1,6 +1,6 @@

 # frozen_string_literal: true

-require 'test_helper'

+require_relative '../test_helper'

 class TestOrderedList < Minitest::Test

   include TestHelpers

diff --git a/test/parser/test_toc_filter.rb b/test/parser/test_toc_filter.rb

index a2ddd59..ec441ab 100644

--- a/test/parser/test_toc_filter.rb

+++ b/test/parser/test_toc_filter.rb

@@ -1,6 +1,6 @@

 # frozen_string_literal: true

-require 'test_helper'

+require_relative '../test_helper'

 class TestTOCFilter < Minitest::Test

   include TestHelpers

diff --git a/test/parser/test_toc_only_filter.rb b/test/parser/test_toc_only_filter.rb

index 2623a85..8a88291 100644

--- a/test/parser/test_toc_only_filter.rb

+++ b/test/parser/test_toc_only_filter.rb

@@ -1,6 +1,6 @@

 # frozen_string_literal: true

-require 'test_helper'

+require_relative '../test_helper'

 class TestTOCOnlyFilter < Minitest::Test

   include TestHelpers

diff --git a/test/parser/test_various_toc_html.rb b/test/parser/test_various_toc_html.rb

index 26e4ccf..008f01e 100644

--- a/test/parser/test_various_toc_html.rb

+++ b/test/parser/test_various_toc_html.rb

@@ -1,6 +1,6 @@

 # frozen_string_literal: true

-require 'test_helper'

+require_relative '../test_helper'

 class TestVariousTocHtml < Minitest::Test

   TEST_HTML = <<~HTML

diff --git a/test/test_helper.rb b/test/test_helper.rb

index 3faa4eb..f890b3e 100644

--- a/test/test_helper.rb

+++ b/test/test_helper.rb

@@ -1,11 +1,6 @@

 # frozen_string_literal: true

-require 'simplecov'

-SimpleCov.start

-

 require 'minitest/autorun'

-require 'minitest/reporters'

-Minitest::Reporters.use!

 require 'jekyll'

 require 'jekyll-toc'

diff --git a/test/test_jekyll-toc.rb b/test/test_jekyll-toc.rb

index 34fed46..ea1dd8e 100644

--- a/test/test_jekyll-toc.rb

+++ b/test/test_jekyll-toc.rb

@@ -1,6 +1,6 @@

 # frozen_string_literal: true

-require 'test_helper'

+require_relative 'test_helper'

 class TestTableOfContentsFilter < Minitest::Test

   include Jekyll::TableOfContentsFilter

diff --git a/test/test_kramdown_list.rb b/test/test_kramdown_list.rb

index 60019aa..32fe36c 100644

--- a/test/test_kramdown_list.rb

+++ b/test/test_kramdown_list.rb

@@ -1,6 +1,6 @@

 # frozen_string_literal: true

-require 'test_helper'

+require_relative 'test_helper'

 class TestKramdownList < Minitest::Test

   # NOTE: kramdown automatically injects `id` attribute

diff --git a/test/test_toc_tag.rb b/test/test_toc_tag.rb

index 6749875..5f57627 100644

--- a/test/test_toc_tag.rb

+++ b/test/test_toc_tag.rb

@@ -1,6 +1,6 @@

 # frozen_string_literal: true

-require 'test_helper'

+require_relative 'test_helper'

 class TestTableOfContentsTag < Minitest::Test

   include Liquid