diff --git a/build.gradle b/build.gradle
index e869584282c68cffe59c309c4e4b6698b6c124f8..bd327a3b9159dad684f028db628ff6b9eed2e629 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,7 +8,7 @@ group = 'com.example'
 version = '0.0.1-SNAPSHOT'
 
 java {
-	sourceCompatibility = '17'
+	sourceCompatibility = '11'
 }
 
 repositories {