diff --git a/eng/Version.Details.props b/eng/Version.Details.props
index 82ad65afb5a..27fe3ea88b2 100644
--- a/eng/Version.Details.props
+++ b/eng/Version.Details.props
@@ -32,6 +32,7 @@ This file should be imported by eng/Versions.props
     <SystemCompositionPackageVersion>10.0.2</SystemCompositionPackageVersion>
     <SystemDiagnosticsDiagnosticSourcePackageVersion>10.0.2</SystemDiagnosticsDiagnosticSourcePackageVersion>
     <SystemReflectionMetadataPackageVersion>10.0.2</SystemReflectionMetadataPackageVersion>
+    <SystemSecurityCryptographyXmlPackageVersion>10.0.8</SystemSecurityCryptographyXmlPackageVersion>
   </PropertyGroup>
   <!--Property group for alternate package version names-->
   <PropertyGroup>
@@ -62,5 +63,6 @@ This file should be imported by eng/Versions.props
     <SystemCompositionVersion>$(SystemCompositionPackageVersion)</SystemCompositionVersion>
     <SystemDiagnosticsDiagnosticSourceVersion>$(SystemDiagnosticsDiagnosticSourcePackageVersion)</SystemDiagnosticsDiagnosticSourceVersion>
     <SystemReflectionMetadataVersion>$(SystemReflectionMetadataPackageVersion)</SystemReflectionMetadataVersion>
+    <SystemSecurityCryptographyXmlVersion>$(SystemSecurityCryptographyXmlPackageVersion)</SystemSecurityCryptographyXmlVersion>
   </PropertyGroup>
 </Project>
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 07b9c1ce026..80f7750a1f0 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -74,6 +74,12 @@
       <Sha>
       </Sha>
     </Dependency>
+    <!-- Necessary for source-build. This allows the live version of the package to be used by source-build. -->
+    <Dependency Name="System.Security.Cryptography.Xml" Version="10.0.8">
+      <Uri>https://github.com/dotnet/runtime</Uri>
+      <Sha>
+      </Sha>
+    </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
     <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="10.0.0-beta.26275.1">
diff --git a/eng/Versions.props b/eng/Versions.props
index 9f6b9d7b201..64e545f6118 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -89,7 +89,6 @@
     <SystemBuffersVersion>4.6.1</SystemBuffersVersion>
     <SystemMemoryVersion>4.6.3</SystemMemoryVersion>
     <SystemRuntimeCompilerServicesUnsafeVersion>6.1.2</SystemRuntimeCompilerServicesUnsafeVersion>
-    <SystemSecurityCryptographyXmlVersion>10.0.8</SystemSecurityCryptographyXmlVersion>
     <!-- System.* packages from dotnet/runtime are managed in Version.Details.xml / Version.Details.props for source-build. -->
   </PropertyGroup>