diff --git a/AppScaffolding/AppScaffolding.csproj b/AppScaffolding/AppScaffolding.csproj
index edb031c3..d797e839 100644
--- a/AppScaffolding/AppScaffolding.csproj
+++ b/AppScaffolding/AppScaffolding.csproj
@@ -3,7 +3,7 @@
 
   <PropertyGroup>
     <TargetFramework>net5.0</TargetFramework>
-    <Version>6.2.6.42</Version>
+    <Version>6.2.7.1</Version>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/DtoImporterService/BookImporter.cs b/DtoImporterService/BookImporter.cs
index 0b30e52b..9c365823 100644
--- a/DtoImporterService/BookImporter.cs
+++ b/DtoImporterService/BookImporter.cs
@@ -164,7 +164,7 @@ namespace DtoImporterService
 			{
 				foreach (var seriesEntry in item.Series)
 				{
-					var series = DbContext.Series.Local.Single(s => seriesEntry.SeriesId == s.AudibleSeriesId);
+					var series = DbContext.Series.Local.FirstOrDefault(s => seriesEntry.SeriesId == s.AudibleSeriesId);
 					book.UpsertSeries(series, seriesEntry.Sequence);
 				}
 			}