diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 824e5b4ef3ec..aaeaa311fe8f 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -43,7 +43,7 @@ assertj = "org.assertj:assertj-core:3.25.3"
 classgraph = "io.github.classgraph:classgraph:4.8.165"
 snakeyaml = "org.snakeyaml:snakeyaml-engine:2.7"
 jcommander = "org.jcommander:jcommander:1.83"
-kotlinCompileTesting = { module = "dev.zacsweers.kctfork:core", version = "0.4.0" }
+kotlinCompileTesting = { module = "dev.zacsweers.kctfork:core", version = "0.5.0-alpha06" }
 poko-annotations = { module = "dev.drewhamilton.poko:poko-annotations", version.ref = "poko" }
 
 [plugins]