diff --git a/test/NHSNumberGenerator.Test/NHSNumberGenerator.Test.csproj b/test/NHSNumberGenerator.Test/NHSNumberGenerator.Test.csproj
index ead5ca2..e3c04d1 100644
--- a/test/NHSNumberGenerator.Test/NHSNumberGenerator.Test.csproj
+++ b/test/NHSNumberGenerator.Test/NHSNumberGenerator.Test.csproj
@@ -8,7 +8,7 @@
 
     <ItemGroup>
         <PackageReference Include="JunitXml.TestLogger" Version="8.0.0" />
-        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
         <PackageReference Include="NHSNumberValidator" Version="2.0.2.2" />
         <PackageReference Include="Reqnroll.xUnit" Version="3.3.4" />
         <PackageReference Include="Shouldly" Version="4.3.0" />