diff --git a/src/Squidex/Controllers/Api/Rules/Models/RuleActionDto.cs b/src/Squidex/Controllers/Api/Rules/Models/RuleActionDto.cs
index e2bc33439..2b95ed5b6 100644
--- a/src/Squidex/Controllers/Api/Rules/Models/RuleActionDto.cs
+++ b/src/Squidex/Controllers/Api/Rules/Models/RuleActionDto.cs
@@ -8,7 +8,6 @@
 
 using System.Runtime.Serialization;
 using Newtonsoft.Json;
-using NJsonSchema.Converters;
 using Squidex.Controllers.Api.Rules.Models.Actions;
 using Squidex.Domain.Apps.Core.Rules;
 
diff --git a/src/Squidex/Controllers/Api/Rules/Models/RuleTriggerDto.cs b/src/Squidex/Controllers/Api/Rules/Models/RuleTriggerDto.cs
index 3d009cd50..f65ea3f46 100644
--- a/src/Squidex/Controllers/Api/Rules/Models/RuleTriggerDto.cs
+++ b/src/Squidex/Controllers/Api/Rules/Models/RuleTriggerDto.cs
@@ -8,7 +8,6 @@
 
 using System.Runtime.Serialization;
 using Newtonsoft.Json;
-using NJsonSchema.Converters;
 using Squidex.Controllers.Api.Rules.Models.Triggers;
 using Squidex.Domain.Apps.Core.Rules;
 
diff --git a/src/Squidex/Controllers/Api/Schemas/Models/FieldPropertiesDto.cs b/src/Squidex/Controllers/Api/Schemas/Models/FieldPropertiesDto.cs
index f7ac054e7..31e33fbad 100644
--- a/src/Squidex/Controllers/Api/Schemas/Models/FieldPropertiesDto.cs
+++ b/src/Squidex/Controllers/Api/Schemas/Models/FieldPropertiesDto.cs
@@ -9,7 +9,6 @@
 using System.ComponentModel.DataAnnotations;
 using System.Runtime.Serialization;
 using Newtonsoft.Json;
-using NJsonSchema.Converters;
 using Squidex.Controllers.Api.Schemas.Models.Fields;
 using Squidex.Domain.Apps.Core.Schemas;
 
diff --git a/src/Squidex/Controllers/JsonInheritanceConverter2.cs b/src/Squidex/Controllers/JsonInheritanceConverter.cs
similarity index 96%
rename from src/Squidex/Controllers/JsonInheritanceConverter2.cs
rename to src/Squidex/Controllers/JsonInheritanceConverter.cs
index 5cd6ac724..5076a3791 100644
--- a/src/Squidex/Controllers/JsonInheritanceConverter2.cs
+++ b/src/Squidex/Controllers/JsonInheritanceConverter.cs
@@ -18,7 +18,7 @@ using NJsonSchema.Annotations;
 
 namespace Squidex.Controllers
 {
-    public sealed class JsonInheritanceConverter2 : JsonConverter
+    public sealed class JsonInheritanceConverter : JsonConverter
     {
         private readonly string discriminator;
 
@@ -54,7 +54,7 @@ namespace Squidex.Controllers
             }
         }
 
-        public JsonInheritanceConverter2(string discriminator)
+        public JsonInheritanceConverter(string discriminator)
         {
             this.discriminator = discriminator;
         }