diff --git a/eng/SourceBuildPrebuiltBaseline.xml b/eng/SourceBuildPrebuiltBaseline.xml
index b2b6933946..987c2d8b1c 100644
--- a/eng/SourceBuildPrebuiltBaseline.xml
+++ b/eng/SourceBuildPrebuiltBaseline.xml
@@ -3,7 +3,17 @@
 
 <UsageData>
   <IgnorePatterns>
+    <!-- Caused by dependency on System.ComponentModel.Composition.4.5.0. This version is overridden in full source-build. -->
+    <UsagePattern IdentityGlob="Microsoft.NETCore.Platforms/2.0.0" />
     <UsagePattern IdentityGlob="Microsoft.SourceBuild.Intermediate.*/*" />
     <UsagePattern IdentityGlob="NuGet.Frameworks/6.5.0" />
+    <!-- This version is overridden in full source-build. -->
+    <UsagePattern IdentityGlob="System.ComponentModel.Composition/4.5.0" />
+    <!-- Caused by dependency on System.ComponentModel.Composition.4.5.0. This version is overridden in full source-build. -->
+    <UsagePattern IdentityGlob="System.Security.AccessControl/4.5.0" />
+    <!-- Caused by dependency on System.ComponentModel.Composition.4.5.0. This version is overridden in full source-build. -->
+    <UsagePattern IdentityGlob="System.Security.Permissions/4.5.0" />
+    <!-- Caused by dependency on System.ComponentModel.Composition.4.5.0. This version is overridden in full source-build. -->
+    <UsagePattern IdentityGlob="System.Security.Principal.Windows/4.5.0" />
   </IgnorePatterns>
 </UsageData>
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 421292df61..34365fe2e6 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -28,6 +28,11 @@
       <Uri>https://github.com/nuget/nuget.client</Uri>
       <Sha>4ba7bfa82f894ec32a554ca8d2df143675c85735</Sha>
     </Dependency>
+    <!-- Necessary for source-build. This allows the live version of the package to be used by source-build. -->
+    <Dependency Name="System.ComponentModel.Composition" Version="4.5.0">
+      <Uri>https://github.com/dotnet/corefx</Uri>
+      <Sha>30ab651fcb4354552bd4891619a0bdd81e0ebdbf</Sha>
+    </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
     <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="8.0.0-beta.23364.2">
diff --git a/eng/Versions.props b/eng/Versions.props
index 6e613d8f98..f8d32b4ec1 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -42,7 +42,6 @@
     <RoslynBannedApiAnalyzersVersion>3.3.3</RoslynBannedApiAnalyzersVersion>
     <RoslynPublicApiAnalyzersVersion>3.3.4-beta1.21554.2</RoslynPublicApiAnalyzersVersion>
     <SystemCollectionsImmutableVersion>1.5.0</SystemCollectionsImmutableVersion>
-    <SystemComponentModelCompositionForSourceBuildVersion>7.0.0</SystemComponentModelCompositionForSourceBuildVersion>
     <SystemComponentModelCompositionVersion>4.5.0</SystemComponentModelCompositionVersion>
     <SystemMemoryVersion>4.5.5</SystemMemoryVersion>
     <SystemNetHttpVersion>4.3.4</SystemNetHttpVersion>
diff --git a/src/package/Microsoft.TestPlatform.CLI/Microsoft.TestPlatform.CLI.csproj b/src/package/Microsoft.TestPlatform.CLI/Microsoft.TestPlatform.CLI.csproj
index 7654642a99..48fda235ad 100644
--- a/src/package/Microsoft.TestPlatform.CLI/Microsoft.TestPlatform.CLI.csproj
+++ b/src/package/Microsoft.TestPlatform.CLI/Microsoft.TestPlatform.CLI.csproj
@@ -7,7 +7,6 @@
     <When Condition=" '$(DotNetBuildFromSource)' == 'true' ">
       <PropertyGroup>
         <NuspecFile>Microsoft.TestPlatform.CLI.sourcebuild.nuspec</NuspecFile>
-        <SystemComponentModelCompositionVersion>$(SystemComponentModelCompositionForSourceBuildVersion)</SystemComponentModelCompositionVersion>
       </PropertyGroup>
     </When>
     <Otherwise>