diff --git a/Lagrange.OneBot/LagrangeApp.cs b/Lagrange.OneBot/LagrangeApp.cs
index c9e335f..072ad21 100644
--- a/Lagrange.OneBot/LagrangeApp.cs
+++ b/Lagrange.OneBot/LagrangeApp.cs
@@ -35,9 +35,9 @@ public class LagrangeApp : IHost
     {
         _hostApp = host;
         Logger = Services.GetRequiredService<ILogger<LagrangeApp>>();
-        
-        MessageService = new MessageService(Instance, WebService);
-        OperationService = new OperationService(Instance, WebService);
+
+        MessageService = Services.GetRequiredService<MessageService>();
+        OperationService = Services.GetRequiredService<OperationService>();
     }
 
     public async Task StartAsync(CancellationToken cancellationToken = new())
diff --git a/Lagrange.OneBot/LagrangeAppBuilder.cs b/Lagrange.OneBot/LagrangeAppBuilder.cs
index 60bb1db..139b3bc 100644
--- a/Lagrange.OneBot/LagrangeAppBuilder.cs
+++ b/Lagrange.OneBot/LagrangeAppBuilder.cs
@@ -1,7 +1,6 @@
 using System.Text.Json;
 using Lagrange.Core.Common;
 using Lagrange.Core.Common.Interface;
-using Lagrange.OneBot.Core;
 using Lagrange.OneBot.Core.Message;
 using Lagrange.OneBot.Core.Network;
 using Lagrange.OneBot.Core.Operation;
@@ -75,7 +74,11 @@ public sealed class LagrangeAppBuilder
     
     public LagrangeAppBuilder ConfigureOneBot()
     {
+        Services.AddSingleton<ContextBase, LiteDbContext>();
         Services.AddSingleton<ILagrangeWebService, ReverseWSService>();
+
+        Services.AddSingleton<MessageService>();
+        Services.AddSingleton<OperationService>();
         return this;
     }