diff --git a/eng/Versions.props b/eng/Versions.props
index 73f9279a090df..76ddab12dc27b 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -34,7 +34,7 @@
     <MicrosoftVisualStudioLanguageServerClientPackagesVersion>17.3.3101</MicrosoftVisualStudioLanguageServerClientPackagesVersion>
     <MicrosoftVisualStudioLanguageServerProtocolPackagesVersion>17.5.20-preview</MicrosoftVisualStudioLanguageServerProtocolPackagesVersion>
     <MicrosoftVisualStudioShellPackagesVersion>17.5.0-preview-2-33117-317</MicrosoftVisualStudioShellPackagesVersion>
-    <RefOnlyMicrosoftBuildPackagesVersion>16.5.0</RefOnlyMicrosoftBuildPackagesVersion>
+    <RefOnlyMicrosoftBuildPackagesVersion>16.10.0</RefOnlyMicrosoftBuildPackagesVersion>
     <!-- The version of Roslyn we build Source Generators against that are built in this
          repository. This must be lower than MicrosoftNetCompilersToolsetVersion,
          but not higher than our minimum dogfoodable Visual Studio version, or else
@@ -203,7 +203,7 @@
     <MicrosoftVisualStudioWorkspaceVSIntegrationVersion>17.1.11-preview-0002</MicrosoftVisualStudioWorkspaceVSIntegrationVersion>
     <MicrosoftWin32PrimitivesVersion>4.3.0</MicrosoftWin32PrimitivesVersion>
     <MicrosoftWin32RegistryVersion>5.0.0</MicrosoftWin32RegistryVersion>
-    <MSBuildStructuredLoggerVersion>2.1.500</MSBuildStructuredLoggerVersion>
+    <MSBuildStructuredLoggerVersion>2.1.787</MSBuildStructuredLoggerVersion>
     <MDbgVersion>0.1.0</MDbgVersion>
     <MonoOptionsVersion>6.6.0.161</MonoOptionsVersion>
     <MoqVersion>4.10.1</MoqVersion>
diff --git a/src/Tools/BuildBoss/BuildBoss.csproj b/src/Tools/BuildBoss/BuildBoss.csproj
index b3e129fb7769b..25280e95b884e 100644
--- a/src/Tools/BuildBoss/BuildBoss.csproj
+++ b/src/Tools/BuildBoss/BuildBoss.csproj
@@ -11,6 +11,7 @@
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Core" />
+    <Reference Include="System.IO.Compression" />
     <Reference Include="System.Xml" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="WindowsBase" />