diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 4e890defbbf4..d4c86e5e4062 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -384,9 +384,9 @@
       <Sha>464e5fe6fbe499012445cbd6371010748b89dba3</Sha>
     </Dependency>
     <!-- Intermediate is necessary for source build. -->
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="10.0.620701">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="10.0.621401">
       <Uri>https://github.com/dotnet/source-build-externals</Uri>
-      <Sha>ebe6fe9cc5b8b9c87cb218b35514bf9d04475047</Sha>
+      <Sha>d64d8da45618323a39fb77860d1140bdbcd506ad</Sha>
       <SourceBuild RepoName="source-build-externals" ManagedOnly="true" />
     </Dependency>
   </ProductDependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index ef8415cfdd94..78a70e762c0a 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -174,7 +174,7 @@
     <MicrosoftDotNetRemoteExecutorVersion>10.0.0-beta.25214.8</MicrosoftDotNetRemoteExecutorVersion>
     <MicrosoftSourceBuildIntermediatearcadeVersion>10.0.0-beta.25214.8</MicrosoftSourceBuildIntermediatearcadeVersion>
     <!-- Packages from dotnet/source-build-externals -->
-    <MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>10.0.620701</MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>
+    <MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>10.0.621401</MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>
     <!-- Packages from dotnet/source-build-reference-packages -->
     <MicrosoftSourceBuildIntermediatesourcebuildreferencepackagesVersion>10.0.621601</MicrosoftSourceBuildIntermediatesourcebuildreferencepackagesVersion>
     <!-- Packages from dotnet/symreader -->