diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index bb5d14c..e40cbc8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -31,7 +31,7 @@ jobs:
           - "3.0"
           - "3.1"
           - "3.2"
-        rails: 
+        rails:
           - "7.0"
           - "7.1"
 
@@ -39,7 +39,7 @@ jobs:
       - uses: actions/checkout@v4
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
-        env: 
+        env:
           RAILS_VERSION: ${{ matrix.rails }}
         with:
           ruby-version: ${{ matrix.ruby }}
@@ -52,5 +52,4 @@ jobs:
           PGPASSWORD: password
           POSTGRES_PASSWORD: password
         run: |
-          bundle exec stree check --ignore-files="vendor/**/*.rb" "**/*.rb"
           bundle exec rake
diff --git a/.streerc b/.streerc
deleted file mode 100644
index f8bee31..0000000
--- a/.streerc
+++ /dev/null
@@ -1 +0,0 @@
---print-width=100
diff --git a/.tool-versions b/.tool-versions
index f280a04..a1c4ef8 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,2 +1,2 @@
 ruby 3.2.2
-postgres 14.4
+postgres 16.1
diff --git a/Gemfile b/Gemfile
index 08d5bae..ee6cf3f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,14 +1,14 @@
 # frozen_string_literal: true
 
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
-gem 'debug'
-if (rails_version = ENV['RAILS_VERSION'])
-  gem 'rails', "~> #{rails_version}.0"
+gem "debug"
+if (rails_version = ENV["RAILS_VERSION"])
+  gem "rails", "~> #{rails_version}.0"
 else
-  gem 'rails'
+  gem "rails"
 end
-gem 'syntax_tree'
-gem 'typeprof'
+gem "syntax_tree"
+gem "typeprof"
 
 gemspec
diff --git a/Rakefile b/Rakefile
index 2b1ca03..ffa82f9 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,16 +1,31 @@
 # frozen_string_literal: true
 
-require 'bundler/gem_tasks'
-require 'rake/testtask'
+require "bundler/gem_tasks"
+require "rake/testtask"
+require "syntax_tree/rake_tasks"
 
 Rake::TestTask.new(:test) do |t|
-  t.libs << 'test'
-  t.libs << 'lib'
-  t.test_files = FileList['test/**/test_*.rb']
+  t.libs << "test"
+  t.libs << "lib"
+  t.test_files = FileList["test/**/test_*.rb"]
 end
 
-task :pre_commit do
-  `typeprof lib/hoardable.rb && stree write "**/*.rb"`
+SOURCE_FILES = %w[**/*.rb Rakefile Gemfile bin/console]
+
+SyntaxTree::Rake::CheckTask.new(:check) do |t|
+  t.source_files = SOURCE_FILES
+  t.print_width = 100
+  t.ignore_files = "vendor/**/*.rb"
+end
+
+SyntaxTree::Rake::WriteTask.new(:write) do |t|
+  t.source_files = SOURCE_FILES
+  t.print_width = 100
+end
+
+task :typeprof do
+  `typeprof lib/hoardable.rb`
 end
 
-task default: %i[test]
+task default: %i[check test]
+task pre_commit: %i[write typeprof]
diff --git a/bin/console b/bin/console
index 6102306..4f255e4 100755
--- a/bin/console
+++ b/bin/console
@@ -1,7 +1,7 @@
 #!/usr/bin/env ruby
 # frozen_string_literal: true
 
-require 'irb'
-require_relative '../test/helper'
+require "irb"
+require_relative "../test/helper"
 
 IRB.start(__FILE__)