diff --git a/ess/src/API/EMBC.ESS.Utilities.Dynamics/DynamicsODataClientHandler.cs b/ess/src/API/EMBC.ESS.Utilities.Dynamics/DynamicsODataClientHandler.cs
index d760c844e..fe8b44a0b 100644
--- a/ess/src/API/EMBC.ESS.Utilities.Dynamics/DynamicsODataClientHandler.cs
+++ b/ess/src/API/EMBC.ESS.Utilities.Dynamics/DynamicsODataClientHandler.cs
@@ -3,6 +3,7 @@
 using Microsoft.Extensions.Options;
 using Microsoft.OData.Client;
 using Microsoft.OData.Extensions.Client;
+using Microsoft.OData;
 
 namespace EMBC.ESS.Utilities.Dynamics
 {
@@ -26,8 +27,9 @@ public void OnClientCreated(ClientCreatedArgs args)
             client.EntityParameterSendOption = EntityParameterSendOption.SendOnlySetProperties;
             client.Configurations.RequestPipeline.OnEntryStarting((arg) =>
             {
-                // do not send reference properties and null values to Dynamics
-                arg.Entry.Properties = arg.Entry.Properties.Where((prop) => !prop.Name.StartsWith('_') && prop.Value != null);
+                arg.Entry.Properties = arg.Entry.Properties
+                    .OfType<ODataProperty>()
+                    .Where(prop => !prop.Name.StartsWith('_') && prop.Value != null);
             });
             client.BuildingRequest += Client_BuildingRequest;
             client.SendingRequest2 += Client_SendingRequest2;
diff --git a/ess/src/API/EMBC.Tests.Integration.ESS/EMBC.Tests.Integration.ESS.csproj b/ess/src/API/EMBC.Tests.Integration.ESS/EMBC.Tests.Integration.ESS.csproj
index f6d1a113e..e0f080233 100644
--- a/ess/src/API/EMBC.Tests.Integration.ESS/EMBC.Tests.Integration.ESS.csproj
+++ b/ess/src/API/EMBC.Tests.Integration.ESS/EMBC.Tests.Integration.ESS.csproj
@@ -16,6 +16,7 @@
         <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="8.0.10" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
         <PackageReference Include="Serilog.AspNetCore" Version="8.0.3" />
+        <PackageReference Include="Serilog.Sinks.Console" Version="6.0.0" />
         <PackageReference Include="shouldly" Version="4.2.1" />
         <PackageReference Include="xunit" Version="2.9.2" />
         <PackageReference Include="xunit.categories" Version="2.0.8" />
diff --git a/registrants/src/API/EMBC.Registrants.API/EMBC.Registrants.API.csproj b/registrants/src/API/EMBC.Registrants.API/EMBC.Registrants.API.csproj
index d8b109c3d..30b8714a2 100644
--- a/registrants/src/API/EMBC.Registrants.API/EMBC.Registrants.API.csproj
+++ b/registrants/src/API/EMBC.Registrants.API/EMBC.Registrants.API.csproj
@@ -21,6 +21,7 @@
     </PropertyGroup>
 
     <ItemGroup>
+        <PackageReference Include="IdentityModel" Version="7.0.0" />
         <PackageReference Include="IdentityModel.AspNetCore.OAuth2Introspection" Version="6.2.0" />
         <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="8.0.10" />
         <PackageReference Include="Swashbuckle.AspNetCore" Version="6.9.0" />