diff --git a/build.gradle b/build.gradle
index a4e68fc40b..69a5b59daf 100644
--- a/build.gradle
+++ b/build.gradle
@@ -210,7 +210,7 @@ configure(javaProjects) { subproject ->
 	}
 	compileTestKotlin {
 		kotlinOptions {
-			jvmTarget = '11'
+			jvmTarget = '1.8'
 		}
 	}