diff --git a/build.gradle b/build.gradle
index 32cc137..a92d81f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,8 +17,8 @@ repositories {
     }
 }
 
-sourceCompatibility = '17'
-targetCompatibility = '17'
+sourceCompatibility = '11'
+targetCompatibility = '11'
 
 dependencies {
     ext {