diff --git a/backend/src/Squidex.Domain.Apps.Entities/History/NotifoService.cs b/backend/src/Squidex.Domain.Apps.Entities/History/NotifoService.cs
index e3017338e..6ee38ca7b 100644
--- a/backend/src/Squidex.Domain.Apps.Entities/History/NotifoService.cs
+++ b/backend/src/Squidex.Domain.Apps.Entities/History/NotifoService.cs
@@ -81,18 +81,19 @@ namespace Squidex.Domain.Apps.Entities.History
                 return;
             }
 
-            var settings = new NotificationSettingsDto();
-
-            settings[Providers.WebPush] = new NotificationSettingDto
+            var settings = new NotificationSettingsDto
             {
-                Send = true,
-                DelayInSeconds = null
-            };
+                [Providers.WebPush] = new NotificationSettingDto
+                {
+                    Send = true,
+                    DelayInSeconds = null
+                },
 
-            settings[Providers.Email] = new NotificationSettingDto
-            {
-                Send = true,
-                DelayInSeconds = 5 * 60
+                [Providers.Email] = new NotificationSettingDto
+                {
+                    Send = true,
+                    DelayInSeconds = 5 * 60
+                }
             };
 
             var userRequest = new UpsertUserDto
@@ -148,9 +149,10 @@ namespace Squidex.Domain.Apps.Entities.History
                     {
                         foreach (var userId in comment.Mentions!)
                         {
-                            var publishRequest = new PublishRequestDto();
-
-                            publishRequest.Topic = $"users/{userId}";
+                            var publishRequest = new PublishRequestDto
+                            {
+                                Topic = $"users/{userId}"
+                            };
 
                             publishRequest.Properties["SquidexApp"] = comment.AppId.Name;
                             publishRequest.Preformatted = new NotificationFormattingDto();
diff --git a/backend/src/Squidex.Domain.Apps.Entities/Squidex.Domain.Apps.Entities.csproj b/backend/src/Squidex.Domain.Apps.Entities/Squidex.Domain.Apps.Entities.csproj
index 0e4209bfa..5756c6d4a 100644
--- a/backend/src/Squidex.Domain.Apps.Entities/Squidex.Domain.Apps.Entities.csproj
+++ b/backend/src/Squidex.Domain.Apps.Entities/Squidex.Domain.Apps.Entities.csproj
@@ -31,7 +31,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.Orleans.Core" Version="3.3.0" />
-    <PackageReference Include="Notifo.SDK" Version="1.0.0-alpha9" />
+    <PackageReference Include="Notifo.SDK" Version="1.0.0-alpha11" />
     <PackageReference Include="RefactoringEssentials" Version="5.6.0" PrivateAssets="all" />
     <PackageReference Include="StyleCop.Analyzers" Version="1.1.118" PrivateAssets="all" />
     <PackageReference Include="System.Collections.Immutable" Version="5.0.0" />
diff --git a/backend/src/Squidex/Squidex.csproj b/backend/src/Squidex/Squidex.csproj
index e44860193..ad0c1d5f8 100644
--- a/backend/src/Squidex/Squidex.csproj
+++ b/backend/src/Squidex/Squidex.csproj
@@ -5,6 +5,7 @@
     <TypeScriptCompileBlocked>true</TypeScriptCompileBlocked>
     <LangVersion>9.0</LangVersion>
     <Nullable>enable</Nullable>
+	<EnableUnsafeBinaryFormatterSerialization>true</EnableUnsafeBinaryFormatterSerialization>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">