diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ca52763..5e48efa 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ jobs:
   test:
     strategy:
       matrix:
-        ruby: ['2.7', '3.0', '3.1', '3.2']
+        ruby: ['2.7', '3.0', '3.1', '3.2', '3.3']
         gemfile:
           - gemfiles/jekyll_3.9.gemfile
           - gemfiles/jekyll_4.0.gemfile
@@ -30,7 +30,7 @@ jobs:
     - name: Run Test
       run: bundle exec rake
 
-  coverate:
+  coverage:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
diff --git a/LICENSE.txt b/LICENSE.txt
index 9fd5529..ef4045b 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016-2023 Toshimaru
+Copyright (c) 2016-2024 Toshimaru
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index 4fd9d6a..4a125e8 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # jekyll-tagging-related_posts
 
-[![Build Status](https://travis-ci.org/toshimaru/jekyll-tagging-related_posts.svg?branch=master)](https://travis-ci.org/toshimaru/jekyll-tagging-related_posts)
+[![Test](https://github.com/toshimaru/jekyll-tagging-related_posts/actions/workflows/test.yml/badge.svg)](https://github.com/toshimaru/jekyll-tagging-related_posts/actions/workflows/test.yml)
 [![Gem Version](https://badge.fury.io/rb/jekyll-tagging-related_posts.svg)](https://badge.fury.io/rb/jekyll-tagging-related_posts)
 [![Test Coverage](https://codeclimate.com/github/toshimaru/jekyll-tagging-related_posts/badges/coverage.svg)](https://codeclimate.com/github/toshimaru/jekyll-tagging-related_posts/coverage)
 [![Code Climate](https://codeclimate.com/github/toshimaru/jekyll-tagging-related_posts/badges/gpa.svg)](https://codeclimate.com/github/toshimaru/jekyll-tagging-related_posts)
@@ -11,7 +11,7 @@ The calculation algorithm is based on [related\_posts-jekyll\_plugin](https://gi
 
 ## Installation
 
-Add this line to your application's Gemfile:
+Add this line to your application's `Gemfile`:
 
 ```ruby
 gem 'jekyll-tagging-related_posts'
diff --git a/Rakefile b/Rakefile
index ac60dc6..2dea543 100644
--- a/Rakefile
+++ b/Rakefile
@@ -9,4 +9,4 @@ Rake::TestTask.new(:test) do |t|
   t.test_files = FileList['test/**/*_test.rb']
 end
 
-task :default => :test
+task default: :test
diff --git a/bin/console b/bin/console
index 56bb66d..952a2d7 100755
--- a/bin/console
+++ b/bin/console
@@ -1,4 +1,5 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 require "bundler/setup"
 require "jekyll-tagging-related_posts"
@@ -6,9 +7,5 @@ require "jekyll-tagging-related_posts"
 # You can add fixtures and/or initialization code here to make experimenting
 # with your gem easier. You can also use a different console, if you like.
 
-# (If you use this, don't forget to add pry to your Gemfile!)
-# require "pry"
-# Pry.start
-
 require "irb"
-IRB.start
+IRB.start(__FILE__)
diff --git a/bin/setup b/bin/setup
index b65ed50..dce67d8 100755
--- a/bin/setup
+++ b/bin/setup
@@ -1,6 +1,7 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -euo pipefail
 IFS=$'\n\t'
+set -vx
 
 bundle install
 
diff --git a/lib/jekyll-tagging-related_posts.rb b/lib/jekyll-tagging-related_posts.rb
index 65b4922..e236eb0 100644
--- a/lib/jekyll-tagging-related_posts.rb
+++ b/lib/jekyll-tagging-related_posts.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-# requiring `jekyll/document` first to overide `Jekyll::Document`
+# Require `jekyll/document` to override `Jekyll::Document`
 require "jekyll/document"
 
 require "jekyll/tagging/related_posts/version"