diff --git a/NuGet.config b/NuGet.config
index 40e7c9a2e2..ced55102a9 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -2,6 +2,15 @@
 <configuration>
   <packageSources>
     <clear />
+    <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
+    <!--  Begin: Package sources from dotnet-runtime -->
+    <add key="darc-int-dotnet-runtime-2aade6b" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-runtime-2aade6be/nuget/v3/index.json" />
+    <add key="darc-int-dotnet-runtime-2aade6b-5" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-runtime-2aade6be-5/nuget/v3/index.json" />
+    <add key="darc-int-dotnet-runtime-2aade6b-3" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-runtime-2aade6be-3/nuget/v3/index.json" />
+    <add key="darc-int-dotnet-runtime-2aade6b-2" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-runtime-2aade6be-2/nuget/v3/index.json" />
+    <add key="darc-int-dotnet-runtime-2aade6b-1" value="https://pkgs.dev.azure.com/dnceng/internal/_packaging/darc-int-dotnet-runtime-2aade6be-1/nuget/v3/index.json" />
+    <!--  End: Package sources from dotnet-runtime -->
+    <!--End: Package sources managed by Dependency Flow automation. Do not edit the sources above.-->
     <add key="dotnet-public" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json" />
     <add key="dotnet-eng" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-eng/nuget/v3/index.json" />
     <add key="dotnet-tools" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json" />
@@ -9,5 +18,15 @@
     <add key="dotnet9" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet9/nuget/v3/index.json" />
     <add key="dotnet9-transport" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet9-transport/nuget/v3/index.json" />
   </packageSources>
-  <disabledPackageSources />
+  <disabledPackageSources>
+    <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
+    <!--  Begin: Package sources from dotnet-runtime -->
+    <add key="darc-int-dotnet-runtime-2aade6b-1" value="true" />
+    <add key="darc-int-dotnet-runtime-2aade6b-2" value="true" />
+    <add key="darc-int-dotnet-runtime-2aade6b-3" value="true" />
+    <add key="darc-int-dotnet-runtime-2aade6b-5" value="true" />
+    <add key="darc-int-dotnet-runtime-2aade6b" value="true" />
+    <!--  End: Package sources from dotnet-runtime -->
+    <!--End: Package sources managed by Dependency Flow automation. Do not edit the sources above.-->
+  </disabledPackageSources>
 </configuration>
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index a6d3e8423b..b18b8f4aa8 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -2,9 +2,9 @@
 <Dependencies>
   <ProductDependencies>
     <!-- Intermediate is necessary for source build. -->
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="10.0.0-alpha.1.24419.1">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="9.0.0-alpha.1.24420.1">
       <Uri>https://github.com/dotnet/source-build-externals</Uri>
-      <Sha>53509904f37cafa0771accdf404a5609c5ca9be5</Sha>
+      <Sha>ee22054b44ec9615dc3481c4decc1b007a83a2b0</Sha>
       <SourceBuild RepoName="source-build-externals" ManagedOnly="true" />
     </Dependency>
     <!-- Intermediate is necessary for source build. -->