diff --git a/Tests/Tests.csproj b/Tests/Tests.csproj
index 9bf5520..92208a2 100644
--- a/Tests/Tests.csproj
+++ b/Tests/Tests.csproj
@@ -10,7 +10,7 @@
 
     <ItemGroup>
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0"/>
-        <PackageReference Include="NUnit" Version="4.1.0" />
+        <PackageReference Include="NUnit" Version="4.2.1" />
         <PackageReference Include="NUnit3TestAdapter" Version="4.6.0"/>
         <PackageReference Include="NUnit.Analyzers" Version="4.3.0">
             <PrivateAssets>all</PrivateAssets>