diff --git a/gradle/convention/src/main/kotlin/justjanne.kotlin.gradle.kts b/gradle/convention/src/main/kotlin/justjanne.kotlin.gradle.kts
index e709f2c9df2fde90ad271c93e5af81f680caeea0..5eb2c3828bf863c5c4f5c227fa114ffb2601a782 100644
--- a/gradle/convention/src/main/kotlin/justjanne.kotlin.gradle.kts
+++ b/gradle/convention/src/main/kotlin/justjanne.kotlin.gradle.kts
@@ -29,8 +29,7 @@ dependencies {
 tasks.withType<KotlinCompile> {
   kotlinOptions {
     freeCompilerArgs = listOf(
-      "-Xinline-classes",
-      "-Xopt-in=kotlin.ExperimentalUnsignedTypes"
+      "-opt-in=kotlin.ExperimentalUnsignedTypes"
     )
     jvmTarget = "1.8"
   }