diff --git a/src/libraries/Microsoft.Bcl.TimeProvider/ref/Microsoft.Bcl.TimeProvider.csproj b/src/libraries/Microsoft.Bcl.TimeProvider/ref/Microsoft.Bcl.TimeProvider.csproj
index 9c27611bb69466..c8e6af37e77614 100644
--- a/src/libraries/Microsoft.Bcl.TimeProvider/ref/Microsoft.Bcl.TimeProvider.csproj
+++ b/src/libraries/Microsoft.Bcl.TimeProvider/ref/Microsoft.Bcl.TimeProvider.csproj
@@ -17,7 +17,7 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFrameworkIdentifier)' != '.NETCoreApp'">
-    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="$(MicrosoftBclAsyncInterfacesVersion)" />
+    <ProjectReference Include="$(LibrariesProjectRoot)Microsoft.Bcl.AsyncInterfaces\ref\Microsoft.Bcl.AsyncInterfaces.csproj" />
   </ItemGroup>
 
 </Project>
diff --git a/src/libraries/Microsoft.Bcl.TimeProvider/src/Microsoft.Bcl.TimeProvider.csproj b/src/libraries/Microsoft.Bcl.TimeProvider/src/Microsoft.Bcl.TimeProvider.csproj
index d2dc3bcbd35280..8905cf3bb2035b 100644
--- a/src/libraries/Microsoft.Bcl.TimeProvider/src/Microsoft.Bcl.TimeProvider.csproj
+++ b/src/libraries/Microsoft.Bcl.TimeProvider/src/Microsoft.Bcl.TimeProvider.csproj
@@ -27,7 +27,7 @@ System.ITimer</PackageDescription>
   </ItemGroup>
 
   <ItemGroup Condition="'$(IsPartialFacadeAssembly)' != 'true'">
-    <PackageReference Include="Microsoft.Bcl.AsyncInterfaces" Version="$(MicrosoftBclAsyncInterfacesVersion)" />
+    <ProjectReference Include="$(LibrariesProjectRoot)Microsoft.Bcl.AsyncInterfaces\src\Microsoft.Bcl.AsyncInterfaces.csproj" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFrameworkIdentifier)' == '.NETFramework'">