diff --git a/app/composeApp/build.gradle.kts b/app/composeApp/build.gradle.kts
index 20fa329..a435733 100644
--- a/app/composeApp/build.gradle.kts
+++ b/app/composeApp/build.gradle.kts
@@ -6,12 +6,13 @@ plugins {
     alias(libs.plugins.composeMultiplatform)
     alias(libs.plugins.composeCompiler)
     alias(libs.plugins.kotlinMultiplatform)
+    alias(libs.plugins.kotlinSerialization)
 }
 
 kotlin {
     androidTarget {
         compilerOptions {
-            jvmTarget.set(JvmTarget.JVM_17)
+            jvmTarget.set(JvmTarget.JVM_21)
         }
     }
 
@@ -86,8 +87,8 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_17
-        targetCompatibility = JavaVersion.VERSION_17
+        sourceCompatibility = JavaVersion.VERSION_21
+        targetCompatibility = JavaVersion.VERSION_21
     }
 }