diff --git a/FolderDiffIL4DotNet.Tests/FolderDiffIL4DotNet.Tests.csproj b/FolderDiffIL4DotNet.Tests/FolderDiffIL4DotNet.Tests.csproj
index 089f9dd1..5dbc8f0b 100644
--- a/FolderDiffIL4DotNet.Tests/FolderDiffIL4DotNet.Tests.csproj
+++ b/FolderDiffIL4DotNet.Tests/FolderDiffIL4DotNet.Tests.csproj
@@ -26,7 +26,7 @@
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-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
+    <PackageReference Include="xunit.runner.visualstudio" Version="4.0.0">
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