diff --git a/LFlow.Base/App.cs b/LFlow.Base/App.cs
index ede7f13..600c0e7 100644
--- a/LFlow.Base/App.cs
+++ b/LFlow.Base/App.cs
@@ -4,7 +4,7 @@ namespace LFlow.Base;
 /// </summary>
 public class App
 {
-    public static IServiceCollection? services;
+    internal static IServiceCollection? services;
     private static IServiceProvider? ServiceProvider => services?.BuildServiceProvider();
     public static T? GetService<T>()
     {