diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 36485af9fef6..dd3aff62bf9f 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -372,9 +372,9 @@
       <Sha>87ed18403bed2fa877bec7c828900b29fcd99750</Sha>
     </Dependency>
     <!-- Intermediate is necessary for source build. -->
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="10.0.0-alpha.1.24454.1">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.source-build-externals" Version="10.0.0-alpha.1.24459.1">
       <Uri>https://github.com/dotnet/source-build-externals</Uri>
-      <Sha>fb56fcf997fa59ede9c5fbafbb4d2d8a22d392ac</Sha>
+      <Sha>2a2ecbfbee3f87786d9de50e886a72773f0ba449</Sha>
       <SourceBuild RepoName="source-build-externals" ManagedOnly="true" />
     </Dependency>
   </ProductDependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index 78e6296e772a..8b6c9c4b3496 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -170,7 +170,7 @@
     <MicrosoftDotNetRemoteExecutorVersion>10.0.0-beta.24459.1</MicrosoftDotNetRemoteExecutorVersion>
     <MicrosoftSourceBuildIntermediatearcadeVersion>10.0.0-beta.24459.1</MicrosoftSourceBuildIntermediatearcadeVersion>
     <!-- Packages from dotnet/source-build-externals -->
-    <MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>10.0.0-alpha.1.24454.1</MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>
+    <MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>10.0.0-alpha.1.24459.1</MicrosoftSourceBuildIntermediatesourcebuildexternalsVersion>
     <!-- Packages from dotnet/source-build-reference-packages -->
     <MicrosoftSourceBuildIntermediatesourcebuildreferencepackagesVersion>10.0.0-alpha.1.24459.1</MicrosoftSourceBuildIntermediatesourcebuildreferencepackagesVersion>
     <!-- Packages from dotnet/symreader -->