diff --git a/.gitignore b/.gitignore
index 2ad42ca00c..c0f1b27f46 100644
--- a/.gitignore
+++ b/.gitignore
@@ -97,6 +97,9 @@ StyleCopReport.xml
 *.svclog
 *.scc
 
+# MacOS file systems
+**/.DS_STORE
+
 # Chutzpah Test files
 _Chutzpah*
 
diff --git a/src/JsonApiDotNetCore/Extensions/ServiceCollectionExtensions.cs b/src/JsonApiDotNetCore/Extensions/ServiceCollectionExtensions.cs
index ea460c8a5d..19863400ca 100644
--- a/src/JsonApiDotNetCore/Extensions/ServiceCollectionExtensions.cs
+++ b/src/JsonApiDotNetCore/Extensions/ServiceCollectionExtensions.cs
@@ -76,8 +76,8 @@ private static void ResolveInverseRelationships(IServiceCollection services)
         /// </summary>
         public static IServiceCollection AddClientSerialization(this IServiceCollection services)
         {
-            services.AddSingleton<IResponseDeserializer, ResponseDeserializer>();
-            services.AddSingleton<IRequestSerializer>(sp =>
+            services.AddScoped<IResponseDeserializer, ResponseDeserializer>();
+            services.AddScoped<IRequestSerializer>(sp =>
             {
                 var graph = sp.GetService<IResourceGraph>();
                 return new RequestSerializer(graph, new ResourceObjectBuilder(graph, new ResourceObjectBuilderSettings()));