diff --git a/src/SourceBuild/tarball/content/repos/aspnetcore.proj b/src/SourceBuild/tarball/content/repos/aspnetcore.proj
index 72389f7e8..ad9d77885 100644
--- a/src/SourceBuild/tarball/content/repos/aspnetcore.proj
+++ b/src/SourceBuild/tarball/content/repos/aspnetcore.proj
@@ -26,6 +26,18 @@
     <NuGetConfigFile>$(ProjectDirectory)NuGet.config</NuGetConfigFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <!--
+      From aspnetcore Versions.props:
+          Versions of Microsoft.CodeAnalysis packages referenced by analyzers shipped in the SDK.
+          This need to be pinned since they're used in 3.1 apps and need to be loadable in VS 2019.
+      In source-build these don't need to be pinned and can use the source-built versions since it doesn't
+      need to support VS 2019.
+    -->
+    <ExtraPackageVersionPropsPackageInfo Include="Analyzer_MicrosoftCodeAnalysisCSharpVersion" Version="%24(MicrosoftCodeAnalysisCSharpVersion)" />
+    <ExtraPackageVersionPropsPackageInfo Include="Analyzer_MicrosoftCodeAnalysisCSharpWorkspacesVersion" Version="%24(MicrosoftCodeAnalysisCSharpWorkspacesVersion)" />
+  </ItemGroup>
+
   <ItemGroup>
     <RepositoryReference Include="arcade" />
     <RepositoryReference Include="source-build" />