diff --git a/src/simple-api/src/tests/Functional/xxENSONOxx.xxSTACKSxx.API.FunctionalTests/xxENSONOxx.xxSTACKSxx.API.FunctionalTests.csproj b/src/simple-api/src/tests/Functional/xxENSONOxx.xxSTACKSxx.API.FunctionalTests/xxENSONOxx.xxSTACKSxx.API.FunctionalTests.csproj
index 911518ad1..b852a610b 100644
--- a/src/simple-api/src/tests/Functional/xxENSONOxx.xxSTACKSxx.API.FunctionalTests/xxENSONOxx.xxSTACKSxx.API.FunctionalTests.csproj
+++ b/src/simple-api/src/tests/Functional/xxENSONOxx.xxSTACKSxx.API.FunctionalTests/xxENSONOxx.xxSTACKSxx.API.FunctionalTests.csproj
@@ -17,7 +17,7 @@
     <PackageReference Include="Microsoft.Extensions.Http" Version="6.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageReference Include="Shouldly" Version="4.2.1" />
-    <PackageReference Include="System.DirectoryServices.Protocols" Version="6.0.2" />
+    <PackageReference Include="System.DirectoryServices.Protocols" Version="9.0.9" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
     <PackageReference Include="TestStack.BDDfy" Version="4.3.2" />