diff --git a/src/Symbolics.Tests/Symbolics.Tests.fsproj b/src/Symbolics.Tests/Symbolics.Tests.fsproj
index f22e4ff..be67801 100644
--- a/src/Symbolics.Tests/Symbolics.Tests.fsproj
+++ b/src/Symbolics.Tests/Symbolics.Tests.fsproj
@@ -30,9 +30,9 @@
     <Compile Include="Main.fs" />
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit" Version="4.0.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.5.0" />
-    <PackageReference Include="NUnitLite" Version="3.13.3" />
+    <PackageReference Include="NUnitLite" Version="4.0.1" />
     <PackageReference Include="FsUnit" Version="5.6.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageReference Include="Microsoft.NETFramework.ReferenceAssemblies" Version="1.0.3">