diff --git a/AppScaffolding/AppScaffolding.csproj b/AppScaffolding/AppScaffolding.csproj
index 886373bb..7ba04b8c 100644
--- a/AppScaffolding/AppScaffolding.csproj
+++ b/AppScaffolding/AppScaffolding.csproj
@@ -3,7 +3,7 @@
 
   <PropertyGroup>
     <TargetFramework>net5.0</TargetFramework>
-    <Version>6.1.4.1</Version>
+    <Version>6.1.5.1</Version>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/DtoImporterService/SeriesImporter.cs b/DtoImporterService/SeriesImporter.cs
index 62ccbb99..75e6f048 100644
--- a/DtoImporterService/SeriesImporter.cs
+++ b/DtoImporterService/SeriesImporter.cs
@@ -48,7 +48,7 @@ namespace DtoImporterService
 
 			foreach (var s in requestedSeries)
 			{
-				var series = DbContext.Series.Local.SingleOrDefault(c => c.AudibleSeriesId == s.SeriesId);
+				var series = DbContext.Series.Local.FirstOrDefault(c => c.AudibleSeriesId == s.SeriesId);
 				if (series is null)
 				{
 					series = DbContext.Series.Add(new DataLayer.Series(new AudibleSeriesId(s.SeriesId))).Entity;