diff --git a/src/SourceBuild/tarball/patches/razor-compiler/0001-Add-NoWarns.patch b/src/SourceBuild/tarball/patches/razor-compiler/0001-Add-NoWarn-for-NU1507.patch
similarity index 70%
rename from src/SourceBuild/tarball/patches/razor-compiler/0001-Add-NoWarns.patch
rename to src/SourceBuild/tarball/patches/razor-compiler/0001-Add-NoWarn-for-NU1507.patch
index ed5ac11f0557..d1d297915cfa 100644
--- a/src/SourceBuild/tarball/patches/razor-compiler/0001-Add-NoWarns.patch
+++ b/src/SourceBuild/tarball/patches/razor-compiler/0001-Add-NoWarn-for-NU1507.patch
@@ -1,14 +1,12 @@
 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
 From: Logan Bussell <loganbussell@microsoft.com>
 Date: Fri, 13 May 2022 16:14:14 -0700
-Subject: [PATCH] Add NoWarns
+Subject: [PATCH] Add NoWarn for NU1507
 
-NU1507 - This warning occurs when using NuGet central package management without defining
+This warning occurs when using NuGet central package management without defining
 any Package Source Mappings.
-NU1605 - Detected package downgrade: System.Memory from 4.5.5 to 4.5.4
 
-Backport: NU1507 - https://github.com/dotnet/razor-compiler/issues/242
-Backport: NU1605 - https://github.com/dotnet/source-build/issues/2973
+Workaround for: https://github.com/dotnet/razor-compiler/issues/242
 ---
  Directory.Build.props | 1 +
  1 file changed, 1 insertion(+)
@@ -21,7 +19,7 @@ index a57125f5..019ac376 100644
      <!-- Ensure API docs are available. -->
      <NoWarn>$(NoWarn.Replace('1591', ''))</NoWarn>
      <NoWarn Condition=" '$(BuildingInsideVisualStudio)' == 'true' ">$(NoWarn);0105</NoWarn>
-+    <NoWarn>$(NoWarn);NU1507;NU1605</NoWarn>
++    <NoWarn>$(NoWarn);NU1507</NoWarn>
  
      <!-- For local builds, don't make missing XML docs a fatal build error, but still surface so we have visibility into undocumented APIs. -->
      <WarningsNotAsErrors Condition=" '$(ContinuousIntegrationBuild)' != 'true' ">$(WarningsNotAsErrors);CS1591</WarningsNotAsErrors>
diff --git a/src/SourceBuild/tarball/patches/roslyn/0002-Lift-System.Memory-version.patch b/src/SourceBuild/tarball/patches/roslyn/0002-Lift-System.Memory-version.patch
new file mode 100644
index 000000000000..fe1fcb1748b4
--- /dev/null
+++ b/src/SourceBuild/tarball/patches/roslyn/0002-Lift-System.Memory-version.patch
@@ -0,0 +1,28 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: MichaelSimons <msimons@microsoft.com>
+Date: Wed, 24 Aug 2022 12:21:13 +0000
+Subject: [PATCH] Lift System.Memory version
+
+System.Memory version needs to align with the runtime since System.Collections.Immutable is lifted in order to prevent the following situation:
+error NU1605: Detected package downgrade: System.Memory from 4.5.5 to 4.5.4. Reference the package directly from the project to select a different version.  [/repos/tarball-rc1/src/razor-compiler/artifacts/source-build/self/src/razor-compiler.sln]
+error NU1605:  Microsoft.CodeAnalysis.Razor -> Microsoft.CodeAnalysis.CSharp 4.4.0 -> Microsoft.CodeAnalysis.Common 4.4.0 -> System.Collections.Immutable 7.0.0-rc.1.22422.23 -> System.Memory (>= 4.5.5)  [/repos/tarball-rc1/src/razor-compiler/artifacts/source-build/self/src/razor-compiler.sln]
+error NU1605:  Microsoft.CodeAnalysis.Razor -> Microsoft.CodeAnalysis.CSharp 4.4.0 -> Microsoft.CodeAnalysis.Common 4.4.0 -> System.Memory (>= 4.5.4) [/repos/tarball-rc1/src/razor-compiler/artifacts/source-build/self/src/razor-compiler.sln]
+
+Requires https://github.com/dotnet/source-build/issues/2482 in order to eliminate this patch
+---
+ eng/Versions.props | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/eng/Versions.props b/eng/Versions.props
+index 627f9c46824..711593e2a1e 100644
+--- a/eng/Versions.props
++++ b/eng/Versions.props
+@@ -214,7 +214,7 @@
+     <SystemIOPipesAccessControlVersion>5.0.0</SystemIOPipesAccessControlVersion>
+     <SystemIOPipelinesVersion>6.0.1</SystemIOPipelinesVersion>
+     <SystemManagementVersion>5.0.0-preview.8.20407.11</SystemManagementVersion>
+-    <SystemMemoryVersion>4.5.4</SystemMemoryVersion>
++    <SystemMemoryVersion>4.5.5</SystemMemoryVersion>
+     <SystemResourcesExtensionsVersion>6.0.0</SystemResourcesExtensionsVersion>
+     <SystemRuntimeCompilerServicesUnsafeVersion>6.0.0</SystemRuntimeCompilerServicesUnsafeVersion>
+     <SystemRuntimeInteropServicesNFloatInternalVersion>6.0.1</SystemRuntimeInteropServicesNFloatInternalVersion>