diff --git a/src/dnsimple-test/dnsimple-test.csproj b/src/dnsimple-test/dnsimple-test.csproj
index 1640582..183ee11 100644
--- a/src/dnsimple-test/dnsimple-test.csproj
+++ b/src/dnsimple-test/dnsimple-test.csproj
@@ -553,7 +553,7 @@
   <ItemGroup>
     <PackageReference Include="Moq" Version="4.18.4" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-    <PackageReference Include="nunit" Version="3.13.3" />
+    <PackageReference Include="nunit" Version="4.0.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.7.0" />
     <PackageReference Include="RestSharp" Version="106.15.0" />