diff --git a/buildJvm/build_15_Boxing_java/build.gradle b/buildJvm/build_15_Boxing_java/build.gradle
index 1a4640fa..3432056c 100644
--- a/buildJvm/build_15_Boxing_java/build.gradle
+++ b/buildJvm/build_15_Boxing_java/build.gradle
@@ -2,11 +2,6 @@ plugins {
     id 'application'
 }
 
-java {
-    sourceCompatibility = JavaVersion.VERSION_16
-    targetCompatibility = JavaVersion.VERSION_16
-}
-
 sourceSets {
     main {
         java {