diff --git a/Firely.Fhir.Packages.Tests.props b/Firely.Fhir.Packages.Tests.props
index 92d5d9b..9fe7bdc 100644
--- a/Firely.Fhir.Packages.Tests.props
+++ b/Firely.Fhir.Packages.Tests.props
@@ -9,7 +9,7 @@
     <PackageReference Include="FluentAssertions" Version="6.12.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="3.2.0" />
-    <PackageReference Include="MSTest.TestFramework" Version="3.2.0" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.3.1" />
   </ItemGroup>
 
 	<PropertyGroup Condition=" '$(Configuration)' == 'Release' ">