diff --git a/eng/packages/General.props b/eng/packages/General.props
index cd2a0b19b6c..9be98721263 100644
--- a/eng/packages/General.props
+++ b/eng/packages/General.props
@@ -54,6 +54,7 @@
     <PackageVersion Include="System.Net.Http" Version="4.3.4" />
     <PackageVersion Include="System.Private.Uri" Version="4.3.2" />
     <PackageVersion Include="System.Runtime.CompilerServices.Unsafe" Version="6.0.0" />
+    <PackageVersion Include="System.Security.Cryptography.Xml" Version="4.7.1" />
     <PackageVersion Include="System.Text.Json" Version="$(SystemTextJsonVersion)" />
     <PackageVersion Include="System.Threading.Tasks.Extensions" Version="4.5.4" />
     <PackageVersion Include="System.ValueTuple" Version="4.5.0" />
diff --git a/test/Libraries/Microsoft.Extensions.Http.Diagnostics.Tests/Microsoft.Extensions.Http.Diagnostics.Tests.csproj b/test/Libraries/Microsoft.Extensions.Http.Diagnostics.Tests/Microsoft.Extensions.Http.Diagnostics.Tests.csproj
index 44d17c5b2a4..fe1cd8e72d9 100644
--- a/test/Libraries/Microsoft.Extensions.Http.Diagnostics.Tests/Microsoft.Extensions.Http.Diagnostics.Tests.csproj
+++ b/test/Libraries/Microsoft.Extensions.Http.Diagnostics.Tests/Microsoft.Extensions.Http.Diagnostics.Tests.csproj
@@ -26,6 +26,7 @@
     <PackageReference Include="Microsoft.Extensions.Http" />
     <PackageReference Include="Newtonsoft.Json" />
     <PackageReference Include="System.Net.Http" Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net6.0'))" />
+    <PackageReference Include="System.Security.Cryptography.Xml" Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net6.0'))" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net462'">