diff --git a/src/SourceBuild/tarball/content/repos/format.proj b/src/SourceBuild/tarball/content/repos/format.proj
index cc5dae3f7..21734d18d 100644
--- a/src/SourceBuild/tarball/content/repos/format.proj
+++ b/src/SourceBuild/tarball/content/repos/format.proj
@@ -9,22 +9,6 @@
     <OutputPlacementRepoApiImplemented>false</OutputPlacementRepoApiImplemented>
   </PropertyGroup>
 
-  <ItemGroup>
-    <!--
-      dotnet/format has a single property MicrosoftExtensionsVersion that controls the version of
-      all packages like 'Microsoft.Extensions.*'. But, there is no package called
-      "Microsoft.Extensions", so the source-built version isn't used and dotnet/format downloads an
-      old version that comes from SBRP and fails at runtime, when you try to use dotnet-format.
-
-      Pick an arbitrary representative package to pass in as MicrosoftExtensionsVersion so it uses
-      the source-built version from the PVP.
-
-      See https://github.com/dotnet/format/issues/1400
-    -->
-    <ExtraPackageVersionPropsPackageInfo Include="MicrosoftExtensionsVersion" Version="%24(MicrosoftExtensionsDependencyInjectionVersion)" />
-  </ItemGroup>
-
-
   <ItemGroup>
     <RepositoryReference Include="roslyn" />
     <RepositoryReference Include="roslyn-analyzers" />
diff --git a/src/SourceBuild/tarball/patches/format/0001-Fix-MicrosoftExtensionsVersion.patch b/src/SourceBuild/tarball/patches/format/0001-Fix-MicrosoftExtensionsVersion.patch
new file mode 100644
index 000000000..7c09ff2db
--- /dev/null
+++ b/src/SourceBuild/tarball/patches/format/0001-Fix-MicrosoftExtensionsVersion.patch
@@ -0,0 +1,50 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Davis Goodin <dagood@microsoft.com>
+Date: Fri, 22 Oct 2021 13:26:33 -0500
+Subject: [PATCH] Fix MicrosoftExtensionsVersion
+
+Move it to eng/Versions.props to make it overridable, and rename it to match an actual package ID.
+
+See https://github.com/dotnet/format/issues/1400
+---
+ Directory.Packages.props | 7 +++----
+ eng/Versions.props       | 1 +
+ 2 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/Directory.Packages.props b/Directory.Packages.props
+index 6b628c2..9b579ea 100644
+--- a/Directory.Packages.props
++++ b/Directory.Packages.props
+@@ -2,7 +2,6 @@
+   <!-- <Import Project="eng\Versions.props" /> -->
+ 
+   <PropertyGroup>
+-    <MicrosoftExtensionsVersion>5.0.0</MicrosoftExtensionsVersion>
+     <!-- In order tests against the same version of NuGet as the SDK. We have to set this to match. -->
+     <NuGetVersion>6.0.0-preview.4.221</NuGetVersion>
+   </PropertyGroup>
+@@ -25,9 +24,9 @@
+     <PackageVersion Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="$(MicrosoftNETCoreCompilersPackageVersion)" />
+     <PackageVersion Include="Microsoft.CodeAnalysis.Workspaces.MSBuild" Version="$(MicrosoftNETCoreCompilersPackageVersion)" />
+     <PackageVersion Include="Microsoft.CodeAnalysis" Version="$(MicrosoftNETCoreCompilersPackageVersion)" />
+-    <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="$(MicrosoftExtensionsVersion)" />
+-    <PackageVersion Include="Microsoft.Extensions.FileSystemGlobbing" Version="$(MicrosoftExtensionsVersion)" />
+-    <PackageVersion Include="Microsoft.Extensions.Logging" Version="$(MicrosoftExtensionsVersion)" />
++    <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="$(MicrosoftExtensionsDependencyInjectionVersion)" />
++    <PackageVersion Include="Microsoft.Extensions.FileSystemGlobbing" Version="$(MicrosoftExtensionsDependencyInjectionVersion)" />
++    <PackageVersion Include="Microsoft.Extensions.Logging" Version="$(MicrosoftExtensionsDependencyInjectionVersion)" />
+     <PackageVersion Include="NuGet.Common" Version="$(NuGetVersion)" />
+     <PackageVersion Include="NuGet.Configuration" Version="$(NuGetVersion)" />
+     <PackageVersion Include="NuGet.Frameworks" Version="$(NuGetVersion)" />
+diff --git a/eng/Versions.props b/eng/Versions.props
+index b1990aa..f6ddbbd 100644
+--- a/eng/Versions.props
++++ b/eng/Versions.props
+@@ -15,6 +15,7 @@
+   <PropertyGroup>
+     <MicrosoftBuildVersion>16.11.0</MicrosoftBuildVersion>
+     <MicrosoftCodeAnalysisAnalyzersVersion>3.3.2</MicrosoftCodeAnalysisAnalyzersVersion>
++    <MicrosoftExtensionsDependencyInjectionVersion>5.0.0</MicrosoftExtensionsDependencyInjectionVersion>
+     <!-- Dependencies from https://github.com/dotnet/roslyn -->
+     <MicrosoftNETCoreCompilersPackageVersion>4.0.0-6.21515.3</MicrosoftNETCoreCompilersPackageVersion>
+     <!-- Dependencies from https://github.com/dotnet/command-line-api -->