diff --git a/NuGet.config b/NuGet.config
index e31e3b13ad69..cc821d0d5225 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -28,7 +28,7 @@
     <!--  Begin: Package sources from dotnet-aspnetcore -->
     <!--  End: Package sources from dotnet-aspnetcore -->
     <!--  Begin: Package sources from DotNet-msbuild-Trusted -->
-    <add key="darc-pub-DotNet-msbuild-Trusted-a3e0085" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-DotNet-msbuild-Trusted-a3e0085f/nuget/v3/index.json" />
+    <add key="darc-pub-DotNet-msbuild-Trusted-f42d88d" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-DotNet-msbuild-Trusted-f42d88d8/nuget/v3/index.json" />
     <!--  End: Package sources from DotNet-msbuild-Trusted -->
     <!--  Begin: Package sources from dotnet-roslyn-analyzers -->
     <!--  End: Package sources from dotnet-roslyn-analyzers -->
diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 2c0c7792fb82..ac48512621f8 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -73,18 +73,18 @@
       <Sha>b65413ac057eb0a54c51b76b1855bc377c2132c3</Sha>
       <SourceBuild RepoName="emsdk" ManagedOnly="true" />
     </Dependency>
-    <Dependency Name="Microsoft.Build" Version="17.12.53">
+    <Dependency Name="Microsoft.Build" Version="17.12.55">
       <Uri>https://github.com/dotnet/msbuild</Uri>
-      <Sha>a3e0085f1d5f33a0e6250dc7b5158c28e12bd457</Sha>
+      <Sha>f42d88d8b1ac5dbe867e66278c5f4d9573eec65b</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Build.Localization" Version="17.12.53-preview-25570-13">
+    <Dependency Name="Microsoft.Build.Localization" Version="17.12.55-preview-25616-06">
       <Uri>https://github.com/dotnet/msbuild</Uri>
-      <Sha>a3e0085f1d5f33a0e6250dc7b5158c28e12bd457</Sha>
+      <Sha>f42d88d8b1ac5dbe867e66278c5f4d9573eec65b</Sha>
     </Dependency>
     <!-- Intermediate is necessary for source build. -->
-    <Dependency Name="Microsoft.SourceBuild.Intermediate.msbuild" Version="17.12.53-preview-25570-13">
+    <Dependency Name="Microsoft.SourceBuild.Intermediate.msbuild" Version="17.12.55-preview-25616-06">
       <Uri>https://github.com/dotnet/msbuild</Uri>
-      <Sha>a3e0085f1d5f33a0e6250dc7b5158c28e12bd457</Sha>
+      <Sha>f42d88d8b1ac5dbe867e66278c5f4d9573eec65b</Sha>
       <SourceBuild RepoName="msbuild" ManagedOnly="true" />
     </Dependency>
     <Dependency Name="Microsoft.FSharp.Compiler" Version="12.9.101-beta.25070.7">
diff --git a/eng/Versions.props b/eng/Versions.props
index e30c271601a6..1221de2772cc 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -180,8 +180,8 @@
          At usage sites, either we use MicrosoftBuildMinimumVersion, or MicrosoftBuildVersion in source-only modes.
 
          Additionally, set the MinimumVSVersion for the installer UI that's required for targeting NetCurrent -->
-    <MicrosoftBuildVersion>17.12.53</MicrosoftBuildVersion>
-    <MicrosoftBuildLocalizationVersion>17.12.53-preview-25570-13</MicrosoftBuildLocalizationVersion>
+    <MicrosoftBuildVersion>17.12.55</MicrosoftBuildVersion>
+    <MicrosoftBuildLocalizationVersion>17.12.55-preview-25616-06</MicrosoftBuildLocalizationVersion>
     <MicrosoftBuildMinimumVersion Condition="'$(DotNetBuildSourceOnly)' != 'true'">17.11.48</MicrosoftBuildMinimumVersion>
     <MinimumVSVersion>17.12</MinimumVSVersion>
   </PropertyGroup>