diff --git a/framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/DataFiltering/HardDelete_Tests.cs b/framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/DataFiltering/HardDelete_Tests.cs
index 66c6e58b5c..699e6de5a3 100644
--- a/framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/DataFiltering/HardDelete_Tests.cs
+++ b/framework/test/Volo.Abp.MongoDB.Tests/Volo/Abp/MongoDB/DataFiltering/HardDelete_Tests.cs
@@ -2,9 +2,11 @@
 using System.Collections.Generic;
 using System.Text;
 using Volo.Abp.TestApp.Testing;
+using Xunit;
 
 namespace Volo.Abp.MongoDB.DataFiltering
 {
+    [Collection(MongoTestCollection.Name)]
     public class HardDelete_Tests : HardDelete_Tests<AbpMongoDbTestModule>
     {
     }
diff --git a/modules/identity/test/Volo.Abp.Identity.MongoDB.Tests/Volo/Abp/Identity/MongoDB/OrganizationUnitRepository_Tests.cs b/modules/identity/test/Volo.Abp.Identity.MongoDB.Tests/Volo/Abp/Identity/MongoDB/OrganizationUnitRepository_Tests.cs
index d60611b2b6..b017352f9e 100644
--- a/modules/identity/test/Volo.Abp.Identity.MongoDB.Tests/Volo/Abp/Identity/MongoDB/OrganizationUnitRepository_Tests.cs
+++ b/modules/identity/test/Volo.Abp.Identity.MongoDB.Tests/Volo/Abp/Identity/MongoDB/OrganizationUnitRepository_Tests.cs
@@ -1,9 +1,11 @@
 using System;
 using System.Collections.Generic;
 using System.Text;
+using Xunit;
 
 namespace Volo.Abp.Identity.MongoDB
 {
+     [Collection(MongoTestCollection.Name)]
     public class OrganizationUnitRepository_Tests : OrganizationUnitRepository_Tests<AbpIdentityMongoDbTestModule>
     {
     }