diff --git a/backend/tools/Migrate_01/OldEvents/ContentChangesDiscarded.cs b/backend/tools/Migrate_01/OldEvents/ContentChangesDiscarded.cs
index 0818c3878..70b4f6e32 100644
--- a/backend/tools/Migrate_01/OldEvents/ContentChangesDiscarded.cs
+++ b/backend/tools/Migrate_01/OldEvents/ContentChangesDiscarded.cs
@@ -6,18 +6,20 @@
 // ==========================================================================
 
 using System;
+using Squidex.Domain.Apps.Events.Contents;
 using Squidex.Infrastructure.EventSourcing;
 using Squidex.Infrastructure.Migrations;
+using Squidex.Infrastructure.Reflection;
 
 namespace Migrate_01.OldEvents
 {
     [EventType(nameof(ContentChangesDiscarded))]
     [Obsolete]
-    public sealed class ContentChangesDiscarded : IEvent, IMigrated<IEvent>
+    public sealed class ContentChangesDiscarded : ContentEvent, IMigrated<IEvent>
     {
         public IEvent Migrate()
         {
-            return new NoopEvent();
+            return SimpleMapper.Map(this, new NoopConventEvent());
         }
     }
 }
diff --git a/backend/tools/Migrate_01/OldEvents/ContentChangesPublished.cs b/backend/tools/Migrate_01/OldEvents/ContentChangesPublished.cs
index 2860770db..a80411e1e 100644
--- a/backend/tools/Migrate_01/OldEvents/ContentChangesPublished.cs
+++ b/backend/tools/Migrate_01/OldEvents/ContentChangesPublished.cs
@@ -15,7 +15,7 @@ namespace Migrate_01.OldEvents
 {
     [EventType(nameof(ContentChangesPublished))]
     [Obsolete]
-    public sealed class ContentChangesPublished : IEvent, IMigrated<IEvent>
+    public sealed class ContentChangesPublished : ContentEvent, IMigrated<IEvent>
     {
         public IEvent Migrate()
         {
diff --git a/backend/tools/Migrate_01/OldEvents/ContentUpdateProposed.cs b/backend/tools/Migrate_01/OldEvents/ContentUpdateProposed.cs
index b7a2b3154..80da7253e 100644
--- a/backend/tools/Migrate_01/OldEvents/ContentUpdateProposed.cs
+++ b/backend/tools/Migrate_01/OldEvents/ContentUpdateProposed.cs
@@ -6,18 +6,23 @@
 // ==========================================================================
 
 using System;
+using Squidex.Domain.Apps.Core.Contents;
+using Squidex.Domain.Apps.Events;
 using Squidex.Infrastructure.EventSourcing;
 using Squidex.Infrastructure.Migrations;
+using Squidex.Infrastructure.Reflection;
 
 namespace Migrate_01.OldEvents
 {
     [EventType(nameof(ContentUpdateProposed))]
     [Obsolete]
-    public sealed class ContentUpdateProposed : IEvent, IMigrated<IEvent>
+    public sealed class ContentUpdateProposed : SquidexEvent, IMigrated<IEvent>
     {
+        public NamedContentData Data { get; set; }
+
         public IEvent Migrate()
         {
-            return new NoopEvent();
+            return SimpleMapper.Map(this, new NoopConventEvent());
         }
     }
 }
diff --git a/backend/tools/Migrate_01/OldEvents/NoopConventEvent.cs b/backend/tools/Migrate_01/OldEvents/NoopConventEvent.cs
new file mode 100644
index 000000000..27654fc2d
--- /dev/null
+++ b/backend/tools/Migrate_01/OldEvents/NoopConventEvent.cs
@@ -0,0 +1,17 @@
+// ==========================================================================
+//  Squidex Headless CMS
+// ==========================================================================
+//  Copyright (c) Squidex UG (haftungsbeschraenkt)
+//  All rights reserved. Licensed under the MIT license.
+// ==========================================================================
+
+using Squidex.Domain.Apps.Events.Contents;
+using Squidex.Infrastructure.Reflection;
+
+namespace Migrate_01.OldEvents
+{
+    [TypeName(nameof(NoopConventEvent))]
+    public sealed class NoopConventEvent : ContentEvent
+    {
+    }
+}