diff --git a/buildSrc/src/main/groovy/ayansen.playground.kotlin-common-conventions.gradle b/buildSrc/src/main/groovy/ayansen.playground.kotlin-common-conventions.gradle
index 5695ab6..b2e0e60 100644
--- a/buildSrc/src/main/groovy/ayansen.playground.kotlin-common-conventions.gradle
+++ b/buildSrc/src/main/groovy/ayansen.playground.kotlin-common-conventions.gradle
@@ -30,12 +30,12 @@ group = 'ayansen.playground'
 version = '0.0.1-SNAPSHOT'
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_17
-    targetCompatibility = JavaVersion.VERSION_17
+    sourceCompatibility = JavaVersion.VERSION_11
+    targetCompatibility = JavaVersion.VERSION_11
 }
 
 kotlin {
     compilerOptions {
-        jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17
+        jvmTarget = org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11
     }
 }
\ No newline at end of file