diff --git a/MSTest-Playwright-BrowserStack/MSTest-Playwright-BrowserStack.csproj b/MSTest-Playwright-BrowserStack/MSTest-Playwright-BrowserStack.csproj
index f410c36..cd1eef0 100644
--- a/MSTest-Playwright-BrowserStack/MSTest-Playwright-BrowserStack.csproj
+++ b/MSTest-Playwright-BrowserStack/MSTest-Playwright-BrowserStack.csproj
@@ -17,6 +17,9 @@
     <PackageReference Include="MSTest.TestAdapter" Version="2.2.8" />
     <PackageReference Include="MSTest.TestFramework" Version="2.2.8" />
     <PackageReference Include="coverlet.collector" Version="3.1.2" />
+    <!-- Security pins: override vulnerable transitive 4.3.0 (via NETStandard.Library 1.6.1). APS-19257 / APS-19258 -->
+    <PackageReference Include="System.Net.Http" Version="4.3.4" />
+    <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
   </ItemGroup>
 
 </Project>