diff --git a/phirSOFT.ConstraintedComparisonTests/phirSOFT.TopologicalComparisonTests.csproj b/phirSOFT.ConstraintedComparisonTests/phirSOFT.TopologicalComparisonTests.csproj
index f6a4672..eda2814 100644
--- a/phirSOFT.ConstraintedComparisonTests/phirSOFT.TopologicalComparisonTests.csproj
+++ b/phirSOFT.ConstraintedComparisonTests/phirSOFT.TopologicalComparisonTests.csproj
@@ -14,7 +14,7 @@
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.2" />
     <PackageReference Include="MSTest.TestAdapter" Version="1.4.0" />
-    <PackageReference Include="MSTest.TestFramework" Version="1.4.0" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.0.4" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\phirSOFT.ConstraintedComparison\phirSOFT.TopologicalComparison.csproj" />