diff --git a/tests/Tiny11UI.Tests/Tiny11UI.Tests.csproj b/tests/Tiny11UI.Tests/Tiny11UI.Tests.csproj
index b5db049..5d2fba9 100644
--- a/tests/Tiny11UI.Tests/Tiny11UI.Tests.csproj
+++ b/tests/Tiny11UI.Tests/Tiny11UI.Tests.csproj
@@ -10,7 +10,7 @@
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-    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
+    <PackageReference Include="xunit.runner.visualstudio" Version="4.0.1">
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