diff --git a/build.gradle b/build.gradle
index aef4d3e2..d3cf0da0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -327,3 +327,7 @@ gradleTest.dependsOn(jar)
 gradleTest.doFirst {
     project.version = project.version.toString()
 }
+
+
+targetCompatibility = JavaVersion.VERSION_1_8
+sourceCompatibility = JavaVersion.VERSION_1_8
\ No newline at end of file