diff --git a/Falcon.SugarApi/Falcon.SugarApi.csproj b/Falcon.SugarApi/Falcon.SugarApi.csproj
index 199e672..202a601 100644
--- a/Falcon.SugarApi/Falcon.SugarApi.csproj
+++ b/Falcon.SugarApi/Falcon.SugarApi.csproj
@@ -8,7 +8,7 @@
 		<DocumentationFile>bin\$(Configuration)\$(TargetFramework)\$(AssemblyName).xml</DocumentationFile>
 		<GenerateDocumentationFile>true</GenerateDocumentationFile>
 		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-		<Version>2.13.0</Version>
+		<Version>2.14.0</Version>
 	</PropertyGroup>
 
 	<ItemGroup>
diff --git a/Falcon.SugarApi/TimedBackgroundTask/TimedTask.cs b/Falcon.SugarApi/TimedBackgroundTask/TimedTask.cs
index fadd64b..38708bb 100644
--- a/Falcon.SugarApi/TimedBackgroundTask/TimedTask.cs
+++ b/Falcon.SugarApi/TimedBackgroundTask/TimedTask.cs
@@ -9,7 +9,7 @@ namespace Falcon.SugarApi.TimedBackgroundTask
     /// <summary>
     /// 由定时器驱动的后台任务
     /// </summary>
-    public class TimedTask:BackgroundService, IDisposable
+    public abstract class TimedTask:BackgroundService, IDisposable
     {
         /// <summary>
         /// 日志记录器
@@ -25,7 +25,7 @@ namespace Falcon.SugarApi.TimedBackgroundTask
         /// </summary>
         /// <param name="cancellationToken">退出信号</param>
         /// <returns>如果继续执行返回True，否则False</returns>
-        public virtual async Task<bool> Run(CancellationToken cancellationToken) => await Task.FromResult(true);
+        public abstract Task<bool> Run(CancellationToken cancellationToken);
 
         /// <summary>
         /// Timer心跳
@@ -127,8 +127,12 @@ namespace Falcon.SugarApi.TimedBackgroundTask
             this.NextTickTime = s.GetNextOccurrence(DateTime.Now);
         }
 
+        /// <summary>
+        /// 释放对象
+        /// </summary>
         public override void Dispose() {
             this._timer?.Dispose();
+            GC.SuppressFinalize(this);
             base.Dispose();
         }
     }