diff --git a/test/NHSNumberValidator.Test/NHSNumberValidator.Test.csproj b/test/NHSNumberValidator.Test/NHSNumberValidator.Test.csproj
index 6809ccc..aef3d33 100644
--- a/test/NHSNumberValidator.Test/NHSNumberValidator.Test.csproj
+++ b/test/NHSNumberValidator.Test/NHSNumberValidator.Test.csproj
@@ -12,7 +12,7 @@
 
     <ItemGroup>
         <PackageReference Include="JUnitTestLogger" Version="1.1.0" />
-        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
         <PackageReference Include="SpecFlow.Plus.LivingDocPlugin" Version="3.9.57" />
         <PackageReference Include="SpecFlow.xUnit" Version="3.9.74" />
         <PackageReference Include="xunit" Version="2.6.2" />