diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index bbd9d1efa..94046ba35 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -3,9 +3,9 @@
   <ProductDependencies>
   </ProductDependencies>
   <ToolsetDependencies>
-    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="9.0.0-beta.24076.5">
+    <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="9.0.0-beta.24102.4">
       <Uri>https://github.com/dotnet/arcade</Uri>
-      <Sha>66c9c5397d599af40f2a94989241944f5a73442a</Sha>
+      <Sha>2fb543a45580400a559b5ae41c96a815ea14dac5</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>
diff --git a/eng/common/sdk-task.ps1 b/eng/common/sdk-task.ps1
index 73828dd30..091023970 100644
--- a/eng/common/sdk-task.ps1
+++ b/eng/common/sdk-task.ps1
@@ -64,7 +64,7 @@ try {
       $GlobalJson.tools | Add-Member -Name "vs" -Value (ConvertFrom-Json "{ `"version`": `"16.5`" }") -MemberType NoteProperty
     }
     if( -not ($GlobalJson.tools.PSObject.Properties.Name -match "xcopy-msbuild" )) {
-      $GlobalJson.tools | Add-Member -Name "xcopy-msbuild" -Value "17.8.1-2" -MemberType NoteProperty
+      $GlobalJson.tools | Add-Member -Name "xcopy-msbuild" -Value "17.8.5" -MemberType NoteProperty
     }
     if ($GlobalJson.tools."xcopy-msbuild".Trim() -ine "none") {
         $xcopyMSBuildToolsFolder = InitializeXCopyMSBuild $GlobalJson.tools."xcopy-msbuild" -install $true
diff --git a/eng/common/templates/job/source-index-stage1.yml b/eng/common/templates/job/source-index-stage1.yml
index 795233662..b5a3e5c4a 100644
--- a/eng/common/templates/job/source-index-stage1.yml
+++ b/eng/common/templates/job/source-index-stage1.yml
@@ -1,6 +1,6 @@
 parameters:
   runAsPublic: false
-  sourceIndexPackageVersion: 1.0.1-20231213.4
+  sourceIndexPackageVersion: 1.0.1-20240129.2
   sourceIndexPackageSource: https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json
   sourceIndexBuildCommand: powershell -NoLogo -NoProfile -ExecutionPolicy Bypass -Command "eng/common/build.ps1 -restore -build -binarylog -ci"
   preSteps: []
diff --git a/eng/common/tools.ps1 b/eng/common/tools.ps1
index 0da65b574..a8f8edb32 100644
--- a/eng/common/tools.ps1
+++ b/eng/common/tools.ps1
@@ -379,8 +379,8 @@ function InitializeVisualStudioMSBuild([bool]$install, [object]$vsRequirements =
 
   # If the version of msbuild is going to be xcopied,
   # use this version. Version matches a package here:
-  # https://dev.azure.com/dnceng/public/_artifacts/feed/dotnet-eng/NuGet/RoslynTools.MSBuild/versions/17.8.1-2
-  $defaultXCopyMSBuildVersion = '17.8.1-2'
+  # https://dev.azure.com/dnceng/public/_artifacts/feed/dotnet-eng/NuGet/RoslynTools.MSBuild/versions/17.8.5
+  $defaultXCopyMSBuildVersion = '17.8.5'
 
   if (!$vsRequirements) {
     if (Get-Member -InputObject $GlobalJson.tools -Name 'vs') {
diff --git a/global.json b/global.json
index 3fba1a6b1..290dcb76e 100644
--- a/global.json
+++ b/global.json
@@ -8,7 +8,7 @@
     "dotnet": "9.0.100-alpha.1.23615.4"
   },
   "msbuild-sdks": {
-    "Microsoft.DotNet.Arcade.Sdk": "9.0.0-beta.24076.5",
+    "Microsoft.DotNet.Arcade.Sdk": "9.0.0-beta.24102.4",
     "Microsoft.Build.NoTargets": "3.7.0",
     "Microsoft.Build.Traversal": "3.4.0"
   }