diff --git a/CRSim.Core/Services/SettingsService.cs b/CRSim.Core/Services/SettingsService.cs
index c4975b5..a9e8a95 100644
--- a/CRSim.Core/Services/SettingsService.cs
+++ b/CRSim.Core/Services/SettingsService.cs
@@ -1,8 +1,6 @@
 using CRSim.Core.Abstractions;
 using CRSim.Core.Models;
 using CRSim.Core.Utils;
-using System;
-using System.IO;
 using System.Text.Json;
 
 namespace CRSim.Core.Services
@@ -24,11 +22,15 @@ namespace CRSim.Core.Services
 
             _settings.ApiName = _settings.Api.Name;
 
-            var options = new JsonSerializerOptions { WriteIndented = true };
             string jsonString = JsonSerializer.Serialize(_settings, options);
             File.WriteAllText(_settingsFilePath, jsonString);
         }
 
+        private readonly JsonSerializerOptions options = new()
+        {
+            WriteIndented = true,
+        };
+
         public void LoadSettings()
         {
             try
@@ -47,7 +49,6 @@ namespace CRSim.Core.Services
             }
             catch (JsonException)
             {
-                // Handle the case where the json is corrupted, load default settings
                 _settings = new Settings();
                 SaveSettings();
             }
diff --git a/Directory.Build.props b/Directory.Build.props
index 132428b..76027a4 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-      <Version>3.1.4.1</Version>
+      <Version>3.1.4.0</Version>
 	  <Authors>电排骨</Authors>
 	  <RepositoryUrl>https://github.com/denglihong2007/CRSim</RepositoryUrl>
   </PropertyGroup>