diff --git a/github-workflows-kt/api/github-workflows-kt.api b/github-workflows-kt/api/github-workflows-kt.api
index dbd133b13..f949c3194 100644
--- a/github-workflows-kt/api/github-workflows-kt.api
+++ b/github-workflows-kt/api/github-workflows-kt.api
@@ -537,6 +537,10 @@ public final class io/github/typesafegithub/workflows/domain/RunnerType$WindowsL
 	public static final field INSTANCE Lio/github/typesafegithub/workflows/domain/RunnerType$WindowsLatest;
 }
 
+public final class io/github/typesafegithub/workflows/domain/RunnerType$Xcode27 : io/github/typesafegithub/workflows/domain/RunnerType$GitHubHosted {
+	public static final field INSTANCE Lio/github/typesafegithub/workflows/domain/RunnerType$Xcode27;
+}
+
 public abstract interface class io/github/typesafegithub/workflows/domain/Shell {
 }
 
diff --git a/github-workflows-kt/src/main/kotlin/io/github/typesafegithub/workflows/domain/RunnerType.kt b/github-workflows-kt/src/main/kotlin/io/github/typesafegithub/workflows/domain/RunnerType.kt
index 69d7ec5cd..f647d2600 100644
--- a/github-workflows-kt/src/main/kotlin/io/github/typesafegithub/workflows/domain/RunnerType.kt
+++ b/github-workflows-kt/src/main/kotlin/io/github/typesafegithub/workflows/domain/RunnerType.kt
@@ -53,6 +53,8 @@ public sealed interface RunnerType {
 
     public object Macos14 : GitHubHosted("macos-14")
 
+    public object Xcode27 : GitHubHosted("xcode-27")
+
     // Custom runner. Could be an expression `runsOn = expr("github.event.inputs.run-on")`
     public data class Custom(
         val runsOn: String,