diff --git a/build.gradle b/build.gradle
index 499d691..b66d83c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ plugins {
 
 group = 'ru.ip.labs'
 version = '0.0.1-SNAPSHOT'
-sourceCompatibility = '17'
+sourceCompatibility = '11'
 
 repositories {
 	mavenCentral()