diff --git a/backend/src/Squidex.Domain.Apps.Core.Operations/HandleRules/RuleEventFormatter.cs b/backend/src/Squidex.Domain.Apps.Core.Operations/HandleRules/RuleEventFormatter.cs
index e9f47c02d..f283ff06a 100644
--- a/backend/src/Squidex.Domain.Apps.Core.Operations/HandleRules/RuleEventFormatter.cs
+++ b/backend/src/Squidex.Domain.Apps.Core.Operations/HandleRules/RuleEventFormatter.cs
@@ -10,7 +10,6 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Text.RegularExpressions;
-using System.Threading;
 using System.Threading.Tasks;
 using Newtonsoft.Json;
 using NodaTime.Text;
diff --git a/backend/src/Squidex.Domain.Apps.Entities/Backup/TempFolderBackupArchiveLocation.cs b/backend/src/Squidex.Domain.Apps.Entities/Backup/TempFolderBackupArchiveLocation.cs
index 0c883a167..0dab4fcdf 100644
--- a/backend/src/Squidex.Domain.Apps.Entities/Backup/TempFolderBackupArchiveLocation.cs
+++ b/backend/src/Squidex.Domain.Apps.Entities/Backup/TempFolderBackupArchiveLocation.cs
@@ -52,6 +52,8 @@ namespace Squidex.Domain.Apps.Entities.Backup
                 {
                     using (var client = new HttpClient())
                     {
+                        client.Timeout = TimeSpan.FromHours(1);
+
                         response = await client.GetAsync(url);
                         response.EnsureSuccessStatusCode();
 
diff --git a/backend/src/Squidex.Domain.Apps.Entities/Contents/ContentSchedulerGrain.cs b/backend/src/Squidex.Domain.Apps.Entities/Contents/ContentSchedulerGrain.cs
index 76b268657..8e7240300 100644
--- a/backend/src/Squidex.Domain.Apps.Entities/Contents/ContentSchedulerGrain.cs
+++ b/backend/src/Squidex.Domain.Apps.Entities/Contents/ContentSchedulerGrain.cs
@@ -8,7 +8,6 @@
 using System;
 using System.Threading;
 using System.Threading.Tasks;
-using Newtonsoft.Json.Bson;
 using NodaTime;
 using Orleans;
 using Orleans.Runtime;
diff --git a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Assets/Queries/AssetQueryParserTests.cs b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Assets/Queries/AssetQueryParserTests.cs
index bcaaa9560..1ca3e039f 100644
--- a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Assets/Queries/AssetQueryParserTests.cs
+++ b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Assets/Queries/AssetQueryParserTests.cs
@@ -8,7 +8,6 @@
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
-using Esprima.Ast;
 using FakeItEasy;
 using Microsoft.Extensions.Options;
 using Squidex.Domain.Apps.Core.Tags;
diff --git a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Contents/Queries/ContentQueryParserTests.cs b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Contents/Queries/ContentQueryParserTests.cs
index a3782d09e..8276c57c4 100644
--- a/backend/tests/Squidex.Domain.Apps.Entities.Tests/Contents/Queries/ContentQueryParserTests.cs
+++ b/backend/tests/Squidex.Domain.Apps.Entities.Tests/Contents/Queries/ContentQueryParserTests.cs
@@ -7,8 +7,6 @@
 
 using System;
 using System.Threading.Tasks;
-using Esprima.Ast;
-using FakeItEasy;
 using Microsoft.Extensions.Caching.Memory;
 using Microsoft.Extensions.Options;
 using Squidex.Domain.Apps.Core;