diff --git a/knightbus-postgresql/src/KnightBus.PostgreSql/KnightBus.PostgreSql.csproj b/knightbus-postgresql/src/KnightBus.PostgreSql/KnightBus.PostgreSql.csproj
index 7cf017e0..9f3ac8b5 100644
--- a/knightbus-postgresql/src/KnightBus.PostgreSql/KnightBus.PostgreSql.csproj
+++ b/knightbus-postgresql/src/KnightBus.PostgreSql/KnightBus.PostgreSql.csproj
@@ -19,7 +19,6 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\..\..\knightbus-newtonsoft\src\KnightBus.Newtonsoft\KnightBus.Newtonsoft.csproj"/>
     <ProjectReference Include="..\..\..\knightbus\src\KnightBus.Core\KnightBus.Core.csproj"/>
     <ProjectReference Include="..\KnightBus.PostgreSql.Messages\KnightBus.PostgreSql.Messages.csproj"/>
   </ItemGroup>
diff --git a/knightbus-postgresql/src/KnightBus.PostgreSql/PostgresConfiguration.cs b/knightbus-postgresql/src/KnightBus.PostgreSql/PostgresConfiguration.cs
index 48b9dc7c..87141f2e 100644
--- a/knightbus-postgresql/src/KnightBus.PostgreSql/PostgresConfiguration.cs
+++ b/knightbus-postgresql/src/KnightBus.PostgreSql/PostgresConfiguration.cs
@@ -1,6 +1,5 @@
 using KnightBus.Core;
 using KnightBus.Messages;
-using KnightBus.Newtonsoft;
 
 namespace KnightBus.PostgreSql;
 
@@ -20,6 +19,6 @@ public PostgresConfiguration(string connectionString)
     public PostgresConfiguration() { }
 
     public string ConnectionString { get; set; } = null!;
-    public IMessageSerializer MessageSerializer { get; set; } = new NewtonsoftSerializer();
+    public IMessageSerializer MessageSerializer { get; set; } = new MicrosoftJsonSerializer();
     public TimeSpan PollingSleepInterval { get; set; } = TimeSpan.FromSeconds(5);
 }