diff --git a/src/UniTask/Assets/Plugins/UniTask/Runtime/CancellationTokenExtensions.cs b/src/UniTask/Assets/Plugins/UniTask/Runtime/CancellationTokenExtensions.cs
index 9867dd5..d7cd06b 100644
--- a/src/UniTask/Assets/Plugins/UniTask/Runtime/CancellationTokenExtensions.cs
+++ b/src/UniTask/Assets/Plugins/UniTask/Runtime/CancellationTokenExtensions.cs
@@ -36,6 +36,7 @@ namespace Cysharp.Threading.Tasks
                 UniTaskScheduler.PublishUnobservedTaskException(ex);
             }
             cts.Cancel();
+            cts.Dispose();
         }
 
         public static (UniTask, CancellationTokenRegistration) ToUniTask(this CancellationToken cancellationToken)
diff --git a/src/UniTask/Assets/Plugins/UniTask/Runtime/CancellationTokenSourceExtensions.cs b/src/UniTask/Assets/Plugins/UniTask/Runtime/CancellationTokenSourceExtensions.cs
index 167255a..5913908 100644
--- a/src/UniTask/Assets/Plugins/UniTask/Runtime/CancellationTokenSourceExtensions.cs
+++ b/src/UniTask/Assets/Plugins/UniTask/Runtime/CancellationTokenSourceExtensions.cs
@@ -9,15 +9,15 @@ namespace Cysharp.Threading.Tasks
 {
     public static class CancellationTokenSourceExtensions
     {
-        public static void CancelAfterSlim(this CancellationTokenSource cts, int millisecondsDelay, bool ignoreTimeScale = false, PlayerLoopTiming delayTiming = PlayerLoopTiming.Update)
+        public static void CancelAfterSlim(this CancellationTokenSource cts, int millisecondsDelay, DelayType delayType = DelayType.DeltaTime, PlayerLoopTiming delayTiming = PlayerLoopTiming.Update)
         {
-            var delay = UniTask.Delay(millisecondsDelay, ignoreTimeScale, delayTiming, cts.Token);
+            var delay = UniTask.Delay(millisecondsDelay, delayType, delayTiming, cts.Token);
             CancelAfterCore(cts, delay).Forget();
         }
 
-        public static void CancelAfterSlim(this CancellationTokenSource cts, TimeSpan delayTimeSpan, bool ignoreTimeScale = false, PlayerLoopTiming delayTiming = PlayerLoopTiming.Update)
+        public static void CancelAfterSlim(this CancellationTokenSource cts, TimeSpan delayTimeSpan, DelayType delayType = DelayType.DeltaTime, PlayerLoopTiming delayTiming = PlayerLoopTiming.Update)
         {
-            var delay = UniTask.Delay(delayTimeSpan, ignoreTimeScale, delayTiming, cts.Token);
+            var delay = UniTask.Delay(delayTimeSpan, delayType, delayTiming, cts.Token);
             CancelAfterCore(cts, delay).Forget();
         }