diff --git a/build.gradle b/build.gradle
index 8363040..09d0733 100644
--- a/build.gradle
+++ b/build.gradle
@@ -43,3 +43,5 @@ jar {
 
 group = 'me.kavin.piped'
 version = '1.0'
+sourceCompatibility = JavaVersion.VERSION_11
+targetCompatibility = JavaVersion.VERSION_11
diff --git a/gradlew b/gradlew
old mode 100644
new mode 100755