diff --git a/src/Hl7.Fhir.Support.Poco/Hl7.Fhir.Support.Poco.csproj b/src/Hl7.Fhir.Support.Poco/Hl7.Fhir.Support.Poco.csproj
index fa5d9de11..9a4bf08e3 100644
--- a/src/Hl7.Fhir.Support.Poco/Hl7.Fhir.Support.Poco.csproj
+++ b/src/Hl7.Fhir.Support.Poco/Hl7.Fhir.Support.Poco.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
 	<Import Project="..\firely-net-common.props" />
 
@@ -22,7 +22,7 @@
 
 	<ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0'">
 		<PackageReference Include="System.Buffers" Version="4.5.1" />
-		<PackageReference Include="System.Text.Json" Version="6.0.6" />
+		<PackageReference Include="System.Text.Json" Version="7.0.3" />
 	</ItemGroup>
 
 	<ItemGroup>