diff --git a/tests/Webserver.API.UnitTests/Webserver.Api.UnitTests.csproj b/tests/Webserver.API.UnitTests/Webserver.Api.UnitTests.csproj
index 65bd819..ddf6fab 100644
--- a/tests/Webserver.API.UnitTests/Webserver.Api.UnitTests.csproj
+++ b/tests/Webserver.API.UnitTests/Webserver.Api.UnitTests.csproj
@@ -21,7 +21,7 @@
 			<IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
 		</PackageReference>
 		<PackageReference Include="MimeMapping" Version="3.0.1" />
-		<PackageReference Include="nunit" Version="3.13.3" />
+		<PackageReference Include="nunit" Version="4.2.2" />
 		<PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
 		<PackageReference Include="RichardSzalay.MockHttp" Version="7.0.0" />