diff --git a/build.gradle b/build.gradle
index 972bfcb..c6e830b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,7 +7,7 @@ plugins {
 apply from: 'environment.gradle'
 
 java {
-    sourceCompatibility = '11'
+    sourceCompatibility = '17'
 }
 [compileJava, compileTestJava]*.options*.encoding = 'UTF-8'
 
@@ -32,7 +32,7 @@ repositories {
 }
 
 String[] value = project.ext.mxInstallVersion.tokenize(".")
-String junitHelperVersion = (value[0].toInteger() * 100 + value[1].toInteger()) < 1111 ? "1.2.0" : "1.3.0"
+String junitHelperVersion = (value[0].toInteger() * 100 + value[1].toInteger()) < 1111 ? "1.2.0" : "1.4.0"
 
 dependencies {
     implementation(fileTree(mxRuntimeBundles).include('*.jar'))