diff --git a/RDMSharpTests/RDMSharpTests.csproj b/RDMSharpTests/RDMSharpTests.csproj
index f9b74d7..6bc7908 100644
--- a/RDMSharpTests/RDMSharpTests.csproj
+++ b/RDMSharpTests/RDMSharpTests.csproj
@@ -12,7 +12,7 @@
 
   <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="NUnit.Analyzers" Version="4.2.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>