diff --git a/src/Stravaig.Clock.Tests/Stravaig.Clock.Tests.csproj b/src/Stravaig.Clock.Tests/Stravaig.Clock.Tests.csproj
index cf3595d..9bb48cb 100644
--- a/src/Stravaig.Clock.Tests/Stravaig.Clock.Tests.csproj
+++ b/src/Stravaig.Clock.Tests/Stravaig.Clock.Tests.csproj
@@ -11,7 +11,7 @@
 
     <ItemGroup>
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-        <PackageReference Include="NUnit" Version="3.14.0" />
+        <PackageReference Include="NUnit" Version="4.0.1" />
         <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
         <PackageReference Include="NUnit.Analyzers" Version="3.8.0" />
         <PackageReference Include="coverlet.collector" Version="6.0.0" />