diff --git a/engine/compose/build.gradle.kts b/engine/compose/build.gradle.kts
index 7e6ba04..a4f1c7d 100644
--- a/engine/compose/build.gradle.kts
+++ b/engine/compose/build.gradle.kts
@@ -74,7 +74,7 @@ kotlin {
 
     sourceSets {
         commonMain.dependencies {
-            implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.9.0")
+            implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.11.0")
             implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.10.2")
             // The engine renders nothing itself: only the Compose runtime,
             // no UI artifacts.