diff --git a/Directory.Packages.props b/Directory.Packages.props
index 08b2ce0d..12a13708 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -5,7 +5,7 @@
     <!-- Please use caution adding a dependency to MSBuild packages. Use latest for testing and
          use the minimum version for compilation for back compat. -->
     <MicrosoftBuildPackageVersion>17.11.4</MicrosoftBuildPackageVersion>
-    <MicrosoftBuildMinimumPackageVersion>16.11.0</MicrosoftBuildMinimumPackageVersion>
+    <MicrosoftBuildMinimumPackageVersion>17.11.4</MicrosoftBuildMinimumPackageVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageVersion Include="CopyOnWrite" Version="0.4.2" Condition=" '$(TargetFramework)' != 'net46' " />
diff --git a/src/Artifacts/Microsoft.Build.Artifacts.csproj b/src/Artifacts/Microsoft.Build.Artifacts.csproj
index 158d8e1b..8a1267b7 100644
--- a/src/Artifacts/Microsoft.Build.Artifacts.csproj
+++ b/src/Artifacts/Microsoft.Build.Artifacts.csproj
@@ -19,7 +19,7 @@
 
     <!-- Note these are API dependencies to support a minimum version of MSBuild. -->
     <PackageReference Include="Microsoft.Build.Tasks.Core" VersionOverride="$(MicrosoftBuildMinimumPackageVersion)" ExcludeAssets="Runtime" PrivateAssets="All" />
-    <PackageReference Include="System.Threading.Tasks.Dataflow" VersionOverride="4.9.0" PrivateAssets="All" />
+    <PackageReference Include="System.Threading.Tasks.Dataflow" VersionOverride="9.0.0" PrivateAssets="All" />
   </ItemGroup>
   <ItemGroup>
     <None Include="build\*"