diff --git a/uicomponent-compose/main/src/main/java/io/github/droidkaigi/feeder/viewmodel/RealDroidKaigiAppViewModel.kt b/uicomponent-compose/main/src/main/java/io/github/droidkaigi/feeder/viewmodel/RealDroidKaigiAppViewModel.kt
index 42a8ccb29..b3684c5e4 100644
--- a/uicomponent-compose/main/src/main/java/io/github/droidkaigi/feeder/viewmodel/RealDroidKaigiAppViewModel.kt
+++ b/uicomponent-compose/main/src/main/java/io/github/droidkaigi/feeder/viewmodel/RealDroidKaigiAppViewModel.kt
@@ -33,7 +33,5 @@ class RealDroidKaigiAppViewModel @Inject constructor(
                 initialValue = DroidKaigiAppViewModel.State()
             )
 
-    override fun event(event: DroidKaigiAppViewModel.Event) {
-        TODO("Not yet implemented")
-    }
+    override fun event(event: DroidKaigiAppViewModel.Event) {}
 }