diff --git a/GeneratorTests/Moq.AutoMock.Generator.Example.NUnit/Moq.AutoMock.Generator.Example.NUnit.csproj b/GeneratorTests/Moq.AutoMock.Generator.Example.NUnit/Moq.AutoMock.Generator.Example.NUnit.csproj
index 319cff8..6f4fab1 100644
--- a/GeneratorTests/Moq.AutoMock.Generator.Example.NUnit/Moq.AutoMock.Generator.Example.NUnit.csproj
+++ b/GeneratorTests/Moq.AutoMock.Generator.Example.NUnit/Moq.AutoMock.Generator.Example.NUnit.csproj
@@ -10,7 +10,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
-    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit" Version="4.0.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
     <PackageReference Include="coverlet.collector" Version="6.0.0">
       <PrivateAssets>all</PrivateAssets>