diff --git a/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs b/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs
index 55ebea3561..00d0aea188 100644
--- a/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs
+++ b/src/MaaWpfGui/ViewModels/UI/SettingsViewModel.cs
@@ -31,7 +31,6 @@ using MaaWpfGui.Services.HotKeys;
 using MaaWpfGui.States;
 using MaaWpfGui.Utilities.ValueType;
 using MaaWpfGui.ViewModels.UserControl.Settings;
-using MaaWpfGui.ViewModels.UserControl.TaskQueue;
 using Newtonsoft.Json;
 using Serilog;
 using Stylet;
@@ -362,7 +361,7 @@ namespace MaaWpfGui.ViewModels.UI
 
         #region 配置
 
-        public ObservableCollection<CombinedData> ConfigurationList { get; set; }
+        public ObservableCollection<CombinedData> ConfigurationList { get; set; } = [];
 
         private string? _currentConfiguration = ConfigurationHelper.GetCurrentConfiguration();
 
@@ -378,7 +377,7 @@ namespace MaaWpfGui.ViewModels.UI
             }
         }
 
-        private string _newConfigurationName;
+        private string _newConfigurationName = string.Empty;
 
         public string NewConfigurationName
         {
@@ -495,7 +494,7 @@ namespace MaaWpfGui.ViewModels.UI
 
         private NotifyType _notifySource = NotifyType.None;
 
-        private Timer _resetNotifyTimer;
+        private Timer? _resetNotifyTimer;
 
         private void ResetNotifySource()
         {
diff --git a/src/MaaWpfGui/ViewModels/UserControl/TaskQueue/FightSettingsUserControlModel.cs b/src/MaaWpfGui/ViewModels/UserControl/TaskQueue/FightSettingsUserControlModel.cs
index 604998f95b..142178af2a 100644
--- a/src/MaaWpfGui/ViewModels/UserControl/TaskQueue/FightSettingsUserControlModel.cs
+++ b/src/MaaWpfGui/ViewModels/UserControl/TaskQueue/FightSettingsUserControlModel.cs
@@ -554,7 +554,7 @@ public class FightSettingsUserControlModel : TaskViewModel
     /// <summary>
     /// Gets or private sets the list of drops.
     /// </summary>
-    public ObservableCollection<CombinedData> DropsList { get; private set; }
+    public ObservableCollection<CombinedData> DropsList { get; private set; } = [];
 
     private string _dropsItemId = ConfigurationHelper.GetValue(ConfigurationKeys.DropsItemId, string.Empty);
 
diff --git a/src/MaaWpfGui/ViewModels/UserControl/TaskQueue/InfrastSettingsUserControlModel.cs b/src/MaaWpfGui/ViewModels/UserControl/TaskQueue/InfrastSettingsUserControlModel.cs
index b941b3534d..428fe7a63f 100644
--- a/src/MaaWpfGui/ViewModels/UserControl/TaskQueue/InfrastSettingsUserControlModel.cs
+++ b/src/MaaWpfGui/ViewModels/UserControl/TaskQueue/InfrastSettingsUserControlModel.cs
@@ -145,7 +145,7 @@ public class InfrastSettingsUserControlModel : TaskViewModel
         }
     }
 
-    private string _dormThresholdLabel;
+    private string _dormThresholdLabel = string.Empty;
 
     /// <summary>
     /// Gets or sets the label of dormitory threshold.