diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 4cdae7c..70f9ac1 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -24,7 +24,7 @@ jobs:
         path: build/cache
         key: ${{ runner.os }}-ccache
     - name: build
-      run: rake build:all release
+      run: rake build:all
 
     - name: Upload test binary (linux-amd64)
       uses: actions/upload-artifact@v3
@@ -46,6 +46,11 @@ jobs:
       with:
         name: rf-${{ github.sha }}-darwin-arm64
         path: build/darwin-arm64/bin/rf
+    - name: Upload test binary (windows-amd64)
+      uses: actions/upload-artifact@v3
+      with:
+        name: rf-${{ github.sha }}-windows-amd64
+        path: build/windows-amd64/bin/rf.exe
 
   test-on-linux:
     needs: build
@@ -86,3 +91,21 @@ jobs:
       run: |
         chmod +x build/bin/rf
         rake spec
+
+  test-on-windows:
+    needs: build
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/download-artifact@v3
+      with:
+        name: rf-${{ github.sha }}-windows-amd64
+        path: build/bin
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: 3.2
+    - name: Install dependencies
+      run: bundle install
+    - name: Run test
+      run: rake spec
diff --git a/Gemfile b/Gemfile
index 6b0ad33..6ad05cd 100644
--- a/Gemfile
+++ b/Gemfile
@@ -3,7 +3,7 @@ source 'https://rubygems.org/'
 gem 'rake'
 
 group 'test' do
-  gem 'aruba', '~> 2.1.0'
+  gem 'aruba', github: 'cucumber/aruba', branch: 'main'
   gem 'parallel_tests'
   gem 'rspec'
   gem 'rspec-parameterized', '>= 1.0.0'
diff --git a/Gemfile.lock b/Gemfile.lock
index 2777394..cfb71f4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,18 +1,22 @@
-GEM
-  remote: https://rubygems.org/
+GIT
+  remote: https://github.com/cucumber/aruba.git
+  revision: 4994d939852d60d939e2f641bb33a282bb4005af
+  branch: main
   specs:
     aruba (2.1.0)
       bundler (>= 1.17, < 3.0)
-      childprocess (>= 2.0, < 5.0)
       contracts (>= 0.16.0, < 0.18.0)
       cucumber (>= 4.0, < 9.0)
       rspec-expectations (~> 3.4)
       thor (~> 1.0)
+
+GEM
+  remote: https://rubygems.org/
+  specs:
     ast (2.4.2)
     binding_of_caller (1.0.0)
       debug_inspector (>= 0.0.1)
     builder (3.2.4)
-    childprocess (4.1.0)
     coderay (1.1.3)
     contracts (0.17)
     cucumber (8.0.0)
@@ -117,7 +121,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  aruba (~> 2.1.0)
+  aruba!
   parallel_tests
   rake
   rspec
diff --git a/Rakefile b/Rakefile
index 36dc218..b9041b2 100644
--- a/Rakefile
+++ b/Rakefile
@@ -16,14 +16,16 @@ def build_targets
   %w[
     linux-amd64 linux-arm64
     darwin-amd64 darwin-arm64
+    windows-amd64
   ]
 end
 
 def archive_binary_file(targets, version)
   FileUtils.mkdir_p 'release'
   targets.each do |target|
-    src = File.expand_path("build/#{target}/bin/rf")
-    dest = File.expand_path("release/rf-#{version}-#{target}")
+    ext = '.exe' if target =~ /windows/
+    src = File.expand_path("build/#{target}/bin/rf#{ext}")
+    dest = File.expand_path("release/rf-#{version}-#{target}#{ext}")
 
     if target =~ /linux/
       sh "tar -cf #{dest}.tar.gz -C #{File.dirname(src)} #{File.basename(src)}"
diff --git a/build_config.rb b/build_config.rb
index 3489550..98751fc 100644
--- a/build_config.rb
+++ b/build_config.rb
@@ -11,15 +11,13 @@ def debug_config(conf)
   conf.enable_debug
 end
 
-def cc_command
-  command = %w[zig cc]
-  command.unshift 'ccache' if ENV['USE_CCACHE']
-  command.join(' ')
+def ccache
+  'ccache ' if ENV['USE_CCACHE']
 end
 
 def build_config(conf, target = nil, strip: false)
   [conf.cc, conf.linker].each do |cc|
-    cc.command = cc_command
+    cc.command = "#{ccache}zig cc"
     cc.flags += ['-target', target] if target
   end
   conf.cc.flags << '-s' if strip
@@ -88,3 +86,28 @@ def build_config(conf, target = nil, strip: false)
     gem_config(conf)
   end
 end
+
+if build_targets.include?('windows-amd64')
+  MRuby::CrossBuild.new('windows-amd64') do |conf|
+    toolchain :gcc
+
+    conf.build_target     = 'x86_64-pc-linux-gnu'
+    conf.host_target      = 'x86_64-w64-mingw32'
+
+    [conf.cc, conf.linker].each do |cc|
+      cc.command = "#{ccache}#{conf.host_target}-gcc-posix"
+      cc.flags << '-static'
+    end
+    conf.cxx.command      = "#{ccache}#{conf.host_target}-g++"
+    conf.archiver.command = "#{ccache}#{conf.host_target}-gcc-ar"
+
+    conf.exts do |exts|
+      exts.object = '.obj'
+      exts.executable = '.exe'
+      exts.library = '.lib'
+    end
+
+    debug_config(conf)
+    gem_config(conf)
+  end
+end
diff --git a/build_config.rb.lock b/build_config.rb.lock
index 20a54bb..2da0d2c 100644
--- a/build_config.rb.lock
+++ b/build_config.rb.lock
@@ -39,3 +39,163 @@ builds:
       branch: master
       commit: 34a477d249b0d21671058be33aa75d04c3e981ba
       version: 0.0.0
+    https://github.com/buty4649/mruby-onig-regexp.git:
+      url: https://github.com/buty4649/mruby-onig-regexp.git
+      branch: master
+      commit: ce9bc7a8b4ff11a438c36826ed2c685237c96b05
+      version: 0.0.0
+  linux-amd64:
+    https://github.com/mattn/mruby-json.git:
+      url: https://github.com/mattn/mruby-json.git
+      branch: master
+      commit: f99d9428025469f2400f93c53b185f65f963e507
+      version: 0.0.0
+    https://github.com/fastly/mruby-optparse.git:
+      url: https://github.com/fastly/mruby-optparse.git
+      branch: master
+      commit: e6397a090d1efe04d5dab57c63897f0d79bbad89
+      version: 0.0.0
+    https://github.com/mrbgems/mruby-yaml.git:
+      url: https://github.com/mrbgems/mruby-yaml.git
+      branch: master
+      commit: 123010195bf621e784ee9d4ff9144a4b8e9cbb6a
+      version: 0.1.0
+    https://github.com/buty4649/mruby-onig-regexp.git:
+      url: https://github.com/buty4649/mruby-onig-regexp.git
+      branch: fix-build-error-with-mingw
+      commit: ce9bc7a8b4ff11a438c36826ed2c685237c96b05
+      version: 0.0.0
+    https://github.com/IceDragon200/mruby-catch-throw:
+      url: https://github.com/IceDragon200/mruby-catch-throw
+      branch: master
+      commit: 2b6eaff4232b4a9473b864df53c2917080af5dcf
+      version: 1.1.0
+    https://github.com/iij/mruby-env.git:
+      url: https://github.com/iij/mruby-env.git
+      branch: master
+      commit: 056ae324451ef16a50c7887e117f0ea30921b71b
+      version: 0.0.0
+  linux-arm64:
+    https://github.com/mattn/mruby-json.git:
+      url: https://github.com/mattn/mruby-json.git
+      branch: master
+      commit: f99d9428025469f2400f93c53b185f65f963e507
+      version: 0.0.0
+    https://github.com/fastly/mruby-optparse.git:
+      url: https://github.com/fastly/mruby-optparse.git
+      branch: master
+      commit: e6397a090d1efe04d5dab57c63897f0d79bbad89
+      version: 0.0.0
+    https://github.com/mrbgems/mruby-yaml.git:
+      url: https://github.com/mrbgems/mruby-yaml.git
+      branch: master
+      commit: 123010195bf621e784ee9d4ff9144a4b8e9cbb6a
+      version: 0.1.0
+    https://github.com/buty4649/mruby-onig-regexp.git:
+      url: https://github.com/buty4649/mruby-onig-regexp.git
+      branch: fix-build-error-with-mingw
+      commit: ce9bc7a8b4ff11a438c36826ed2c685237c96b05
+      version: 0.0.0
+    https://github.com/IceDragon200/mruby-catch-throw:
+      url: https://github.com/IceDragon200/mruby-catch-throw
+      branch: master
+      commit: 2b6eaff4232b4a9473b864df53c2917080af5dcf
+      version: 1.1.0
+    https://github.com/iij/mruby-env.git:
+      url: https://github.com/iij/mruby-env.git
+      branch: master
+      commit: 056ae324451ef16a50c7887e117f0ea30921b71b
+      version: 0.0.0
+  darwin-amd64:
+    https://github.com/mattn/mruby-json.git:
+      url: https://github.com/mattn/mruby-json.git
+      branch: master
+      commit: f99d9428025469f2400f93c53b185f65f963e507
+      version: 0.0.0
+    https://github.com/fastly/mruby-optparse.git:
+      url: https://github.com/fastly/mruby-optparse.git
+      branch: master
+      commit: e6397a090d1efe04d5dab57c63897f0d79bbad89
+      version: 0.0.0
+    https://github.com/mrbgems/mruby-yaml.git:
+      url: https://github.com/mrbgems/mruby-yaml.git
+      branch: master
+      commit: 123010195bf621e784ee9d4ff9144a4b8e9cbb6a
+      version: 0.1.0
+    https://github.com/buty4649/mruby-onig-regexp.git:
+      url: https://github.com/buty4649/mruby-onig-regexp.git
+      branch: fix-build-error-with-mingw
+      commit: ce9bc7a8b4ff11a438c36826ed2c685237c96b05
+      version: 0.0.0
+    https://github.com/IceDragon200/mruby-catch-throw:
+      url: https://github.com/IceDragon200/mruby-catch-throw
+      branch: master
+      commit: 2b6eaff4232b4a9473b864df53c2917080af5dcf
+      version: 1.1.0
+    https://github.com/iij/mruby-env.git:
+      url: https://github.com/iij/mruby-env.git
+      branch: master
+      commit: 056ae324451ef16a50c7887e117f0ea30921b71b
+      version: 0.0.0
+  darwin-arm64:
+    https://github.com/mattn/mruby-json.git:
+      url: https://github.com/mattn/mruby-json.git
+      branch: master
+      commit: f99d9428025469f2400f93c53b185f65f963e507
+      version: 0.0.0
+    https://github.com/fastly/mruby-optparse.git:
+      url: https://github.com/fastly/mruby-optparse.git
+      branch: master
+      commit: e6397a090d1efe04d5dab57c63897f0d79bbad89
+      version: 0.0.0
+    https://github.com/mrbgems/mruby-yaml.git:
+      url: https://github.com/mrbgems/mruby-yaml.git
+      branch: master
+      commit: 123010195bf621e784ee9d4ff9144a4b8e9cbb6a
+      version: 0.1.0
+    https://github.com/buty4649/mruby-onig-regexp.git:
+      url: https://github.com/buty4649/mruby-onig-regexp.git
+      branch: fix-build-error-with-mingw
+      commit: ce9bc7a8b4ff11a438c36826ed2c685237c96b05
+      version: 0.0.0
+    https://github.com/IceDragon200/mruby-catch-throw:
+      url: https://github.com/IceDragon200/mruby-catch-throw
+      branch: master
+      commit: 2b6eaff4232b4a9473b864df53c2917080af5dcf
+      version: 1.1.0
+    https://github.com/iij/mruby-env.git:
+      url: https://github.com/iij/mruby-env.git
+      branch: master
+      commit: 056ae324451ef16a50c7887e117f0ea30921b71b
+      version: 0.0.0
+  windows-amd64:
+    https://github.com/mattn/mruby-json.git:
+      url: https://github.com/mattn/mruby-json.git
+      branch: master
+      commit: f99d9428025469f2400f93c53b185f65f963e507
+      version: 0.0.0
+    https://github.com/fastly/mruby-optparse.git:
+      url: https://github.com/fastly/mruby-optparse.git
+      branch: master
+      commit: e6397a090d1efe04d5dab57c63897f0d79bbad89
+      version: 0.0.0
+    https://github.com/mrbgems/mruby-yaml.git:
+      url: https://github.com/mrbgems/mruby-yaml.git
+      branch: master
+      commit: 123010195bf621e784ee9d4ff9144a4b8e9cbb6a
+      version: 0.1.0
+    https://github.com/buty4649/mruby-onig-regexp.git:
+      url: https://github.com/buty4649/mruby-onig-regexp.git
+      branch: fix-build-error-with-mingw
+      commit: ce9bc7a8b4ff11a438c36826ed2c685237c96b05
+      version: 0.0.0
+    https://github.com/IceDragon200/mruby-catch-throw:
+      url: https://github.com/IceDragon200/mruby-catch-throw
+      branch: master
+      commit: 2b6eaff4232b4a9473b864df53c2917080af5dcf
+      version: 1.1.0
+    https://github.com/iij/mruby-env.git:
+      url: https://github.com/iij/mruby-env.git
+      branch: master
+      commit: 056ae324451ef16a50c7887e117f0ea30921b71b
+      version: 0.0.0
diff --git a/mrbgem.rake b/mrbgem.rake
index fa759b0..f0ca36a 100644
--- a/mrbgem.rake
+++ b/mrbgem.rake
@@ -11,10 +11,10 @@ MRuby::Gem::Specification.new('rf') do |spec|
 
   %w[
     mruby-json
-    mruby-onig-regexp
     mruby-optparse
     mruby-yaml
   ].each do |mgem|
     spec.add_dependency mgem, mgem:
   end
+  spec.add_dependency 'mruby-onig-regexp', github: 'buty4649/mruby-onig-regexp', branch: 'fix-build-error-with-mingw'
 end
diff --git a/spec/support/aruba.rb b/spec/support/aruba.rb
index 5bfd45f..9332fb5 100644
--- a/spec/support/aruba.rb
+++ b/spec/support/aruba.rb
@@ -6,8 +6,15 @@
   config.working_directory = working_directory
 end
 
-def run_rf(args, input = nil)
+def rf_path
   rf_path = File.expand_path('../../build/bin/rf', __dir__)
+  return rf_path if File.exist?(rf_path)
+
+  "#{rf_path}.exe"
+end
+
+def run_rf(args, input = nil)
+  @rf_path ||= rf_path
   command = run_command("#{rf_path} #{args}")
 
   if input