diff --git a/tests/ImageSort.UnitTests/ImageSort.UnitTests.csproj b/tests/ImageSort.UnitTests/ImageSort.UnitTests.csproj
index 1494b994..83882e5c 100644
--- a/tests/ImageSort.UnitTests/ImageSort.UnitTests.csproj
+++ b/tests/ImageSort.UnitTests/ImageSort.UnitTests.csproj
@@ -18,7 +18,7 @@
     <PackageReference Include="ReactiveUI" Version="23.2.28" />
     <PackageReference Include="ReactiveUI.Testing" Version="23.2.28" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
+    <PackageReference Include="xunit.runner.visualstudio" Version="4.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
diff --git a/tests/ImageSort.WPF.UiTests/ImageSort.WPF.UiTests.csproj b/tests/ImageSort.WPF.UiTests/ImageSort.WPF.UiTests.csproj
index 5ae0df18..ad1b8a86 100644
--- a/tests/ImageSort.WPF.UiTests/ImageSort.WPF.UiTests.csproj
+++ b/tests/ImageSort.WPF.UiTests/ImageSort.WPF.UiTests.csproj
@@ -10,7 +10,7 @@
     <PackageReference Include="FlaUI.UIA3" Version="5.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
+    <PackageReference Include="xunit.runner.visualstudio" Version="4.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>