diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e9420c6..29a006b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,6 +22,7 @@ jobs:
         - { os: windows-2019, ruby: mingw }
         - { os: windows-2019, ruby: mswin }
         - { os: windows-2022, ruby: mingw }
+        - { os: windows-2022, ruby: ucrt }
         - { os: windows-2022, ruby: head }
         exclude:
         - { os: windows-2016, ruby: 1.9 }
diff --git a/common.js b/common.js
index feb7e15..8520a0a 100644
--- a/common.js
+++ b/common.js
@@ -48,7 +48,7 @@ export async function measure(name, block) {
 }
 
 export function isHeadVersion(rubyVersion) {
-  return rubyVersion === 'head' || rubyVersion === 'debug' || rubyVersion === 'mingw' || rubyVersion === 'mswin'
+  return ['head', 'debug',  'mingw', 'mswin', 'ucrt'].includes(rubyVersion)
 }
 
 export function isStableVersion(rubyVersion) {
diff --git a/generate-windows-versions.rb b/generate-windows-versions.rb
index d0b9cd2..3bafd12 100644
--- a/generate-windows-versions.rb
+++ b/generate-windows-versions.rb
@@ -28,6 +28,7 @@ versions = entries.select { |entry|
 versions['head'] = 'https://github.com/oneclick/rubyinstaller2/releases/download/rubyinstaller-head/rubyinstaller-head-x64.7z'
 versions['mingw'] = 'https://github.com/MSP-Greg/ruby-loco/releases/download/ruby-master/ruby-mingw.7z'
 versions['mswin'] = 'https://github.com/MSP-Greg/ruby-loco/releases/download/ruby-master/ruby-mswin.7z'
+versions['ucrt'] = 'https://github.com/MSP-Greg/ruby-loco/releases/download/ruby-master/ruby-ucrt.7z'
 
 js = "export const versions = #{JSON.pretty_generate(versions)}\n"
 File.binwrite 'windows-versions.js', js
diff --git a/windows-versions.js b/windows-versions.js
index 7a746b6..d2011ea 100644
--- a/windows-versions.js
+++ b/windows-versions.js
@@ -45,5 +45,6 @@ export const versions = {
   "3.1.0": "https://github.com/oneclick/rubyinstaller2/releases/download/RubyInstaller-3.1.0-1/rubyinstaller-3.1.0-1-x64.7z",
   "head": "https://github.com/oneclick/rubyinstaller2/releases/download/rubyinstaller-head/rubyinstaller-head-x64.7z",
   "mingw": "https://github.com/MSP-Greg/ruby-loco/releases/download/ruby-master/ruby-mingw.7z",
-  "mswin": "https://github.com/MSP-Greg/ruby-loco/releases/download/ruby-master/ruby-mswin.7z"
+  "mswin": "https://github.com/MSP-Greg/ruby-loco/releases/download/ruby-master/ruby-mswin.7z",
+  "ucrt": "https://github.com/MSP-Greg/ruby-loco/releases/download/ruby-master/ruby-ucrt.7z"
 }