diff --git a/src/MaaWpfGui/Main/AsstProxy.cs b/src/MaaWpfGui/Main/AsstProxy.cs
index 8a6a7f3f92..07f02f9793 100644
--- a/src/MaaWpfGui/Main/AsstProxy.cs
+++ b/src/MaaWpfGui/Main/AsstProxy.cs
@@ -627,7 +627,7 @@ namespace MaaWpfGui.Main
                             .Replace("{Datetime}", DateTime.Now.ToString("U"))
                             .Replace("{Preset}", configurationPreset);
 
-                        ExternalNotificationService.SendAsync(allTaskCompleteTitle, allTaskCompleteMessage).Wait();
+                        ExternalNotificationService.Send(allTaskCompleteTitle, allTaskCompleteMessage);
                         using (var toast = new ToastNotification(allTaskCompleteTitle))
                         {
                             toast.Show();
diff --git a/src/MaaWpfGui/Services/Notification/ExternalNotificationService.cs b/src/MaaWpfGui/Services/Notification/ExternalNotificationService.cs
index 776cf6af57..b6befe539c 100644
--- a/src/MaaWpfGui/Services/Notification/ExternalNotificationService.cs
+++ b/src/MaaWpfGui/Services/Notification/ExternalNotificationService.cs
@@ -11,6 +11,7 @@
 // but WITHOUT ANY WARRANTY
 // </copyright>
 
+using System.Collections.Generic;
 using System.Threading.Tasks;
 using MaaWpfGui.Constants;
 using MaaWpfGui.Helper;
@@ -19,14 +20,9 @@ namespace MaaWpfGui.Services.Notification
 {
     public static class ExternalNotificationService
     {
-        /// <summary>
-        ///     Send notification
-        /// </summary>
-        /// <param name="title">The title of the notification</param>
-        /// <param name="content">The content of the notification</param>
-        /// <param name="isTest">Indicate if it is a test or not.</param>
-        /// <returns>Async task</returns>
-        public static async Task SendAsync(string title, string content, bool isTest = false)
+        private static readonly List<Task> _taskContainers = new List<Task>();
+
+        private static async Task SendAsync(string title, string content, bool isTest = false)
         {
             var enabledProvider = ConfigurationHelper.GetValue(ConfigurationKeys.ExternalNotificationEnabled, "Off");
 
@@ -47,5 +43,18 @@ namespace MaaWpfGui.Services.Notification
             using var toast = new ToastNotification(LocalizationHelper.GetString(result ? "ExternalNotificationSendSuccess" : "ExternalNotificationSendFail"));
             toast.Show();
         }
+
+        /// <summary>
+        ///     Send notification
+        /// </summary>
+        /// <param name="title">The title of the notification</param>
+        /// <param name="content">The content of the notification</param>
+        /// <param name="isTest">Indicate if it is a test or not.</param>
+        public static void Send(string title, string content, bool isTest = false)
+        {
+            var task = SendAsync(title, content, isTest);
+            _taskContainers.RemoveAll(x => x.Status != TaskStatus.Running);
+            _taskContainers.Add(task);
+        }
     }
 }
diff --git a/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs b/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs
index 66c024e360..2294e1ef08 100644
--- a/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs
+++ b/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs
@@ -152,9 +152,9 @@ namespace MaaWpfGui.ViewModels.UI
 
         #region External Notifications
 
-        public async Task ExternalNotificationSendTest()
+        public void ExternalNotificationSendTest()
         {
-            await ExternalNotificationService.SendAsync(
+            ExternalNotificationService.Send(
                 LocalizationHelper.GetString("ExternalNotificationSendTestTitle"),
                 LocalizationHelper.GetString("ExternalNotificationSendTestContent"),
                 true);