diff --git a/build.gradle.kts b/build.gradle.kts
index 138c3a0d..17d3c21a 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -73,6 +73,7 @@ subprojects {
     tasks.withType<KotlinCompile> {
       kotlinOptions {
         jvmTarget = JavaVersion.VERSION_11.toString()
+        freeCompilerArgs = listOf("-Xjvm-default=all-compatibility")
       }
       // dependsOn("spotlessKotlinApply")
     }