diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index c67e9191397831..a2ec2dd98fb653 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -377,5 +377,11 @@
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-optimization</Uri>
       <Sha>85af145192ce699ffcc16bd1a7b565820b6a2dff</Sha>
     </Dependency>
+    <!-- Necessary for source-build. This allows the package to be retrieved from previously-source-built artifacts
+         and flow in as dependencies of the packages produced by runtime. -->
+    <Dependency Name="Nuget.ProjectModel" Version="6.2.2">
+      <Uri>https://github.com/NuGet/NuGet.Client</Uri>
+      <Sha>027ca8b8ef4b4dc94995f87b9c441d2bcf742c1d</Sha>
+    </Dependency>
   </ToolsetDependencies>
 </Dependencies>