diff --git a/AsbCloudWebApi.IntegrationTests/Controllers/ProcessMapPlan/ProcessMapPlanDrillingControllerTest.cs b/AsbCloudWebApi.IntegrationTests/Controllers/ProcessMapPlan/ProcessMapPlanDrillingControllerTest.cs
index c5335ae0..6f21bd0b 100644
--- a/AsbCloudWebApi.IntegrationTests/Controllers/ProcessMapPlan/ProcessMapPlanDrillingControllerTest.cs
+++ b/AsbCloudWebApi.IntegrationTests/Controllers/ProcessMapPlan/ProcessMapPlanDrillingControllerTest.cs
@@ -150,21 +150,7 @@ public class ProcessMapPlanDrillingControllerTest: BaseIntegrationTest
         //assert
         Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);
     }
-
-    [Fact]
-    public async Task InsertRange_returns_BadRequest_for_IdWell()
-    {
-        //arrange
-        var badDto = dto.Adapt<ProcessMapPlanDrillingDto>();
-        badDto.IdWell = int.MaxValue;
-
-        //act
-        var response = await client.InsertRange(dto.IdWell, new[] { badDto });
-
-        //assert
-        Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);
-    }
-
+    
     [Fact]
     public async Task ClearAndInsertRange_returns_success()
     {
diff --git a/AsbCloudWebApi/PermissionAttribute.cs b/AsbCloudWebApi/PermissionAttribute.cs
index 1249b531..775617a1 100644
--- a/AsbCloudWebApi/PermissionAttribute.cs
+++ b/AsbCloudWebApi/PermissionAttribute.cs
@@ -1,13 +1,12 @@
 using System;
-using System.Collections.Generic;
-using System.Runtime.CompilerServices;
+using System.Collections.Concurrent;
 
 namespace AsbCloudWebApi
 {
     [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
     public class PermissionAttribute : Attribute
     {
-        public static SortedSet<string> Registered { get; } = new SortedSet<string>();
+        public static ConcurrentBag<string> Registered { get; } = new();
 
         public string Name { get; set; } = null!;