diff --git a/popcorn/Assets/MyGame/Scripts/GameDataObserver.cs b/popcorn/Assets/MyGame/Scripts/GameDataObserver.cs
index 558733bd..962ebc8a 100644
--- a/popcorn/Assets/MyGame/Scripts/GameDataObserver.cs
+++ b/popcorn/Assets/MyGame/Scripts/GameDataObserver.cs
@@ -51,7 +51,7 @@ public class GameDataObserver : SingletonMonoBehaviour<GameDataObserver>
             .Select(x => Observable.Interval(TimeSpan.FromSeconds(x))).Switch()
             .Subscribe(_ =>
             {
-                heartObserver.OnNext(globalGameData.Heart);
+                heartObserver.OnNext(GameDataUtils.GetTotalHeart());
                 sceneCounter.OnNext(SceneManager.sceneCount);
                 shopLevelObserver.OnNext(globalGameData.ViewedShopLevel);
                 achievedMissionObserver.OnNext(cityGameData.AchievedMission.Count);