diff --git a/Directory.Packages.props b/Directory.Packages.props
index f4fd80e..8f54dc9 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -10,6 +10,7 @@
     <PackageVersion Include="Microsoft.SourceLink.GitHub" Version="10.0.401" />
     <PackageVersion Include="Microsoft.CodeAnalysis.PublicApiAnalyzers" Version="3.3.4" />
     <PackageVersion Include="FluentAssertions" Version="8.11.0" />
+    <PackageVersion Include="System.Security.Cryptography.Pkcs" Version="8.0.2" />
     <PackageVersion Include="xunit" Version="2.7.1" />
     <PackageVersion Include="xunit.runner.visualstudio" Version="4.0.1" />
     <PackageVersion Include="coverlet.collector" Version="10.1.0" />
diff --git a/tests/KeelMatrix.QueryWatch.Providers.SmokeTests/KeelMatrix.QueryWatch.Providers.SmokeTests.csproj b/tests/KeelMatrix.QueryWatch.Providers.SmokeTests/KeelMatrix.QueryWatch.Providers.SmokeTests.csproj
index 6c0d4ba..d8ca38e 100644
--- a/tests/KeelMatrix.QueryWatch.Providers.SmokeTests/KeelMatrix.QueryWatch.Providers.SmokeTests.csproj
+++ b/tests/KeelMatrix.QueryWatch.Providers.SmokeTests/KeelMatrix.QueryWatch.Providers.SmokeTests.csproj
@@ -36,5 +36,6 @@
     <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" PrivateAssets="all" />
     <PackageReference Include="Azure.Identity" PrivateAssets="all" />
     <PackageReference Include="Microsoft.Identity.Client" PrivateAssets="all" />
+    <PackageReference Include="System.Security.Cryptography.Pkcs" />
   </ItemGroup>
 </Project>