diff --git a/firely-validator-api-tests.props b/firely-validator-api-tests.props
index c194840f..1d08802e 100644
--- a/firely-validator-api-tests.props
+++ b/firely-validator-api-tests.props
@@ -17,7 +17,7 @@
 		<PackageReference Include="MessagePack" Version="2.5.140" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
 		<PackageReference Include="MSTest.TestAdapter" Version="3.4.0" />
-		<PackageReference Include="MSTest.TestFramework" Version="3.3.1" />
+		<PackageReference Include="MSTest.TestFramework" Version="3.4.0" />
 		<PackageReference Include="xunit" Version="2.8.0" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.8.0">
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>