diff --git a/DigitalLearningSolutions.Web.Tests/DigitalLearningSolutions.Web.Tests.csproj b/DigitalLearningSolutions.Web.Tests/DigitalLearningSolutions.Web.Tests.csproj
index ef4dd6e67f..347378ea86 100644
--- a/DigitalLearningSolutions.Web.Tests/DigitalLearningSolutions.Web.Tests.csproj
+++ b/DigitalLearningSolutions.Web.Tests/DigitalLearningSolutions.Web.Tests.csproj
@@ -12,7 +12,7 @@
     <PackageReference Include="FluentAssertions" Version="5.10.3" />
     <PackageReference Include="FluentAssertions.AspNetCore.Mvc" Version="3.2.0" />
     <PackageReference Include="NBuilder" Version="6.1.0" />
-    <PackageReference Include="NUnit" Version="3.14.0" />
+    <PackageReference Include="NUnit" Version="4.3.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.6.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
   </ItemGroup>