diff --git a/build.gradle b/build.gradle
index 5ece322..1154f45 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,8 +6,8 @@ apply plugin: 'java'
 apply plugin: 'application'
 
 mainClassName = 'App'
-sourceCompatibility = 14
-targetCompatibility = 14
+sourceCompatibility = 11
+targetCompatibility = 11
 version = '1.0'
 compileJava.options.encoding = 'UTF-8'
 compileTestJava.options.encoding = "UTF-8"