diff --git a/src/Symbolics.Tests/Symbolics.Tests.fsproj b/src/Symbolics.Tests/Symbolics.Tests.fsproj
index f22e4ff..526462a 100644
--- a/src/Symbolics.Tests/Symbolics.Tests.fsproj
+++ b/src/Symbolics.Tests/Symbolics.Tests.fsproj
@@ -30,7 +30,7 @@
     <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="FsUnit" Version="5.6.1" />