diff --git a/Microting.TimePlanningBase.Tests/Microting.TimePlanningBase.Tests.csproj b/Microting.TimePlanningBase.Tests/Microting.TimePlanningBase.Tests.csproj
index a9d0cca..c17972d 100644
--- a/Microting.TimePlanningBase.Tests/Microting.TimePlanningBase.Tests.csproj
+++ b/Microting.TimePlanningBase.Tests/Microting.TimePlanningBase.Tests.csproj
@@ -7,7 +7,7 @@
 
     <ItemGroup>
       <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-      <PackageReference Include="NUnit" Version="3.14.0" />
+      <PackageReference Include="NUnit" Version="4.3.2" />
       <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
     </ItemGroup>