diff --git a/NuGet.config b/NuGet.config
index c5efe56ae..84e92e811 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -6,6 +6,9 @@
   <!-- Only specify feed for Arcade SDK (see https://github.com/Microsoft/msbuild/issues/2982) -->
   <packageSources>
     <clear />
+    <!--Begin: Package sources managed by Dependency Flow automation. Do not edit the sources below.-->
+    <add key="darc-pub-dotnet-core-setup-7d57652" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-core-setup-7d57652f/nuget/v3/index.json" />
+    <!--End: Package sources managed by Dependency Flow automation. Do not edit the sources above.-->
     <add key="dotnet-core" value="https://dotnetfeed.blob.core.windows.net/dotnet-core/index.json" />
     <add key="dotnet-tools" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json" />
     <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index c1536e0cf..b15e8fb6e 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -2,33 +2,33 @@
 <Dependencies>
   <ProductDependencies>
     <!-- Winforms / WPF -->
-    <Dependency Name="Microsoft.WindowsDesktop.App" Version="3.1.0-preview1.19477.22">
+    <Dependency Name="Microsoft.WindowsDesktop.App" Version="3.1.0-preview1.19480.12">
       <Uri>https://github.com/dotnet/core-setup</Uri>
-      <Sha>e5ea848cf4173815a04921132e163e9e8ee17587</Sha>
+      <Sha>c032701d3d607d0c54a215b431a225120d3a7c06</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.WindowsDesktop.App.Runtime.win-x64" Version="3.1.0-preview1.19477.22">
+    <Dependency Name="Microsoft.WindowsDesktop.App.Runtime.win-x64" Version="3.1.0-preview1.19480.12">
       <Uri>https://github.com/dotnet/core-setup</Uri>
-      <Sha>e5ea848cf4173815a04921132e163e9e8ee17587</Sha>
+      <Sha>c032701d3d607d0c54a215b431a225120d3a7c06</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.App" Version="3.1.0-preview1.19477.22">
+    <Dependency Name="Microsoft.NETCore.App" Version="3.1.0-preview1.19480.12">
       <Uri>https://github.com/dotnet/core-setup</Uri>
-      <Sha>e5ea848cf4173815a04921132e163e9e8ee17587</Sha>
+      <Sha>c032701d3d607d0c54a215b431a225120d3a7c06</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.App.Ref" Version="3.1.0-preview1.19477.22">
+    <Dependency Name="Microsoft.NETCore.App.Ref" Version="3.1.0-preview1.19480.12">
       <Uri>https://github.com/dotnet/core-setup</Uri>
-      <Sha>e5ea848cf4173815a04921132e163e9e8ee17587</Sha>
+      <Sha>c032701d3d607d0c54a215b431a225120d3a7c06</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.DotNetAppHost" Version="3.1.0-preview1.19477.22">
+    <Dependency Name="Microsoft.NETCore.DotNetAppHost" Version="3.1.0-preview1.19480.12">
       <Uri>https://github.com/dotnet/core-setup</Uri>
-      <Sha>e5ea848cf4173815a04921132e163e9e8ee17587</Sha>
+      <Sha>c032701d3d607d0c54a215b431a225120d3a7c06</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.DotNetHostResolver" Version="3.1.0-preview1.19477.22">
+    <Dependency Name="Microsoft.NETCore.DotNetHostResolver" Version="3.1.0-preview1.19480.12">
       <Uri>https://github.com/dotnet/core-setup</Uri>
-      <Sha>e5ea848cf4173815a04921132e163e9e8ee17587</Sha>
+      <Sha>c032701d3d607d0c54a215b431a225120d3a7c06</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.App.Runtime.win-x64" Version="3.1.0-preview1.19477.22">
+    <Dependency Name="Microsoft.NETCore.App.Runtime.win-x64" Version="3.1.0-preview1.19480.12">
       <Uri>https://github.com/dotnet/core-setup</Uri>
-      <Sha>e5ea848cf4173815a04921132e163e9e8ee17587</Sha>
+      <Sha>c032701d3d607d0c54a215b431a225120d3a7c06</Sha>
     </Dependency>
     <!-- No new netstandard.library planned for 3.1 timeframe at this time. -->
     <Dependency Name="NETStandard.Library.Ref" Version="2.1.0" Pinned="true">
@@ -36,9 +36,9 @@
       <Sha>7d57652f33493fa022125b7f63aad0d70c52d810</Sha>
     </Dependency>
     <!-- Used to pull in the feed for Microsoft.NETCore.Platforms, but not referenced directly -->
-    <Dependency Name="Microsoft.NETCore.Platforms" Version="3.1.0-preview1.19477.6" CoherentParentDependency="Microsoft.NetCore.App">
+    <Dependency Name="Microsoft.NETCore.Platforms" Version="3.1.0-preview1.19480.7" CoherentParentDependency="Microsoft.NetCore.App">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>719c1be452ab63d28a2d4b7cb53d7b38e228a41a</Sha>
+      <Sha>44de005400b7681b2f2f3e3f40e97f15da05d39f</Sha>
     </Dependency>
     <Dependency Name="Microsoft.AspNetCore.App.Ref" Version="3.1.0-preview1.19475.24">
       <Uri>https://github.com/aspnet/AspNetCore</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index f11fedb26..2bf72917b 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -44,22 +44,22 @@
     <MicrosoftNETBuildExtensionsPackageVersion>$(MicrosoftNETSdkPackageVersion)</MicrosoftNETBuildExtensionsPackageVersion>
   </PropertyGroup>
   <PropertyGroup>
-    <MicrosoftNETCoreAppRuntimewinx64PackageVersion>3.1.0-preview1.19477.22</MicrosoftNETCoreAppRuntimewinx64PackageVersion>
-    <MicrosoftNETCoreAppPackageVersion>3.1.0-preview1.19477.22</MicrosoftNETCoreAppPackageVersion>
+    <MicrosoftNETCoreAppRuntimewinx64PackageVersion>3.1.0-preview1.19480.12</MicrosoftNETCoreAppRuntimewinx64PackageVersion>
+    <MicrosoftNETCoreAppPackageVersion>3.1.0-preview1.19480.12</MicrosoftNETCoreAppPackageVersion>
     <MicrosoftNETCoreAppInternalPackageVersion>$(MicrosoftNETCoreAppPackageVersion)</MicrosoftNETCoreAppInternalPackageVersion>
-    <MicrosoftNETCoreDotNetAppHostPackageVersion>3.1.0-preview1.19477.22</MicrosoftNETCoreDotNetAppHostPackageVersion>
-    <MicrosoftNETCoreDotNetHostResolverPackageVersion>3.1.0-preview1.19477.22</MicrosoftNETCoreDotNetHostResolverPackageVersion>
+    <MicrosoftNETCoreDotNetAppHostPackageVersion>3.1.0-preview1.19480.12</MicrosoftNETCoreDotNetAppHostPackageVersion>
+    <MicrosoftNETCoreDotNetHostResolverPackageVersion>3.1.0-preview1.19480.12</MicrosoftNETCoreDotNetHostResolverPackageVersion>
     <SharedHostVersion>$(MicrosoftNETCoreDotNetHostResolverPackageVersion)</SharedHostVersion>
     <HostFxrVersion>$(MicrosoftNETCoreDotNetAppHostPackageVersion)</HostFxrVersion>
-    <MicrosoftNETCoreAppRefPackageVersion>3.1.0-preview1.19477.22</MicrosoftNETCoreAppRefPackageVersion>
+    <MicrosoftNETCoreAppRefPackageVersion>3.1.0-preview1.19480.12</MicrosoftNETCoreAppRefPackageVersion>
     <NetCoreAppTargetingPackVersion>$(MicrosoftNETCoreAppRefPackageVersion)</NetCoreAppTargetingPackVersion>
     <NetCoreAppHostPackVersion>$(MicrosoftNETCoreDotNetAppHostPackageVersion)</NetCoreAppHostPackVersion>
     <NETStandardLibraryRefPackageVersion>2.1.0</NETStandardLibraryRefPackageVersion>
     <WindowsDesktopTargetingPackVersion>$(MicrosoftNETCoreAppRefPackageVersion)</WindowsDesktopTargetingPackVersion>
     <AspNetCoreVersion>$(MicrosoftAspNetCoreAppRuntimeWinX64PackageVersion)</AspNetCoreVersion>
     <AspNetTargetingPackVersion>$(MicrosoftAspNetCoreAppRefPackageVersion)</AspNetTargetingPackVersion>
-    <MicrosoftWindowsDesktopAppRuntimewinx64PackageVersion>3.1.0-preview1.19477.22</MicrosoftWindowsDesktopAppRuntimewinx64PackageVersion>
-    <MicrosoftWindowsDesktopAppPackageVersion>3.1.0-preview1.19477.22</MicrosoftWindowsDesktopAppPackageVersion>
+    <MicrosoftWindowsDesktopAppRuntimewinx64PackageVersion>3.1.0-preview1.19480.12</MicrosoftWindowsDesktopAppRuntimewinx64PackageVersion>
+    <MicrosoftWindowsDesktopAppPackageVersion>3.1.0-preview1.19480.12</MicrosoftWindowsDesktopAppPackageVersion>
     <MicrosoftWindowsDesktopPackageVersion>$(MicrosoftWindowsDesktopAppPackageVersion)</MicrosoftWindowsDesktopPackageVersion>
   </PropertyGroup>
   <PropertyGroup>