diff --git a/tests/Reactive.Boolean.Tests/Reactive.Boolean.Tests.csproj b/tests/Reactive.Boolean.Tests/Reactive.Boolean.Tests.csproj
index 975b40e..660d1a4 100644
--- a/tests/Reactive.Boolean.Tests/Reactive.Boolean.Tests.csproj
+++ b/tests/Reactive.Boolean.Tests/Reactive.Boolean.Tests.csproj
@@ -10,7 +10,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
     <PackageReference Include="Microsoft.Reactive.Testing" Version="6.1.0" />
-    <PackageReference Include="MSTest" Version="4.0.2" />
+    <PackageReference Include="MSTest" Version="4.1.0" />
     <PackageReference Include="System.Reactive" Version="6.1.0" />
   </ItemGroup>