diff --git a/build/Base.props b/build/Base.props
index 100c9088cd..9ec1c3c2d3 100644
--- a/build/Base.props
+++ b/build/Base.props
@@ -1,5 +1,5 @@
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' != 'net6'">
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
     <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="4.6.0" />
   </ItemGroup>
diff --git a/build/System.Memory.props b/build/System.Memory.props
index b36998a780..a413e18927 100644
--- a/build/System.Memory.props
+++ b/build/System.Memory.props
@@ -1,5 +1,5 @@
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' != 'net6'">
     <PackageReference Include="System.Memory" Version="4.5.3" />
   </ItemGroup>
 </Project>