diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 039cf308..dd2971d1 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -20,7 +20,7 @@ incap = "1.0.0"
 jdk = "20"
 jvmTarget = "11"
 kotlin = "1.9.0"
-kotlinCompileTesting = "0.2.1"
+kotlinCompileTesting = "0.3.0"
 kotlinpoet = "1.12.0"
 ksp = "1.9.0-1.0.11"
 ktfmt = "0.44"
diff --git a/moshi-ir/moshi-compiler-plugin/src/test/kotlin/dev/zacsweers/moshix/ir/compiler/MoshiIrVisitorTest.kt b/moshi-ir/moshi-compiler-plugin/src/test/kotlin/dev/zacsweers/moshix/ir/compiler/MoshiIrVisitorTest.kt
index 15b29d0b..73f8b1db 100644
--- a/moshi-ir/moshi-compiler-plugin/src/test/kotlin/dev/zacsweers/moshix/ir/compiler/MoshiIrVisitorTest.kt
+++ b/moshi-ir/moshi-compiler-plugin/src/test/kotlin/dev/zacsweers/moshix/ir/compiler/MoshiIrVisitorTest.kt
@@ -16,6 +16,7 @@
 package dev.zacsweers.moshix.ir.compiler
 
 import com.google.common.truth.Truth.assertThat
+import com.tschuchort.compiletesting.CompilationResult
 import com.tschuchort.compiletesting.KotlinCompilation
 import com.tschuchort.compiletesting.KotlinCompilation.ExitCode.COMPILATION_ERROR
 import com.tschuchort.compiletesting.KotlinCompilation.ExitCode.OK
@@ -1064,7 +1065,7 @@ class MoshiIrVisitorTest(private val useK2: Boolean) {
     return PluginOption(pluginId, key.optionName, value.toString())
   }
 
-  private fun compile(vararg sourceFiles: SourceFile): KotlinCompilation.Result {
+  private fun compile(vararg sourceFiles: SourceFile): CompilationResult {
     return prepareCompilation(null, *sourceFiles).compile()
   }
 }
diff --git a/moshi-sealed/codegen/src/test/kotlin/dev/zacsweers/moshix/sealed/codegen/ksp/MoshiSealedSymbolProcessorTest.kt b/moshi-sealed/codegen/src/test/kotlin/dev/zacsweers/moshix/sealed/codegen/ksp/MoshiSealedSymbolProcessorTest.kt
index 392daee2..5d268dd4 100644
--- a/moshi-sealed/codegen/src/test/kotlin/dev/zacsweers/moshix/sealed/codegen/ksp/MoshiSealedSymbolProcessorTest.kt
+++ b/moshi-sealed/codegen/src/test/kotlin/dev/zacsweers/moshix/sealed/codegen/ksp/MoshiSealedSymbolProcessorTest.kt
@@ -16,6 +16,7 @@
 package dev.zacsweers.moshix.sealed.codegen.ksp
 
 import com.google.common.truth.Truth.assertThat
+import com.tschuchort.compiletesting.CompilationResult
 import com.tschuchort.compiletesting.KotlinCompilation
 import com.tschuchort.compiletesting.KotlinCompilation.ExitCode
 import com.tschuchort.compiletesting.SourceFile
@@ -518,7 +519,7 @@ class MoshiSealedSymbolProcessorProviderTest {
 
   private fun compile(
     vararg sourceFiles: SourceFile,
-  ): KotlinCompilation.Result {
+  ): CompilationResult {
     return prepareCompilation(*sourceFiles).compile()
   }
 }