diff --git a/MimeTypes.Tests/MimeTypes.Tests.csproj b/MimeTypes.Tests/MimeTypes.Tests.csproj
index 8a00437..f446562 100644
--- a/MimeTypes.Tests/MimeTypes.Tests.csproj
+++ b/MimeTypes.Tests/MimeTypes.Tests.csproj
@@ -11,7 +11,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="NUnit" Version="4.6.1" />
+        <PackageReference Include="NUnit" Version="5.0.0" />
         <PackageReference Include="NUnit3TestAdapter" Version="6.3.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.10.1" />
     </ItemGroup>