diff --git a/src/Catel.Fody.Tests.Catel5/Catel.Fody.Tests.Catel5.csproj b/src/Catel.Fody.Tests.Catel5/Catel.Fody.Tests.Catel5.csproj
index d7fbd0d..34de712 100644
--- a/src/Catel.Fody.Tests.Catel5/Catel.Fody.Tests.Catel5.csproj
+++ b/src/Catel.Fody.Tests.Catel5/Catel.Fody.Tests.Catel5.csproj
@@ -18,7 +18,7 @@
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     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageReference Include="Moq" Version="4.20.70" />
-    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit" Version="4.1.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/src/Catel.Fody.Tests.Catel6/Catel.Fody.Tests.Catel6.csproj b/src/Catel.Fody.Tests.Catel6/Catel.Fody.Tests.Catel6.csproj
index 8a1b6cf..032347e 100644
--- a/src/Catel.Fody.Tests.Catel6/Catel.Fody.Tests.Catel6.csproj
+++ b/src/Catel.Fody.Tests.Catel6/Catel.Fody.Tests.Catel6.csproj
@@ -18,7 +18,7 @@
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     <PackageReference Include="Moq" Version="4.20.70" />
-    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit" Version="4.1.0" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>