diff --git a/src/Shared/Microsoft.AspNetCore.Razor.Utilities.Shared/Microsoft.AspNetCore.Razor.Utilities.Shared.csproj b/src/Shared/Microsoft.AspNetCore.Razor.Utilities.Shared/Microsoft.AspNetCore.Razor.Utilities.Shared.csproj
index 8c00b4d35f9..73431d922b3 100644
--- a/src/Shared/Microsoft.AspNetCore.Razor.Utilities.Shared/Microsoft.AspNetCore.Razor.Utilities.Shared.csproj
+++ b/src/Shared/Microsoft.AspNetCore.Razor.Utilities.Shared/Microsoft.AspNetCore.Razor.Utilities.Shared.csproj
@@ -13,7 +13,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.ObjectPool" />
-    <PackageReference Include="System.Collections.Immutable" />
+    <PackageReference Include="System.Collections.Immutable" Condition="'$(TargetFrameworkIdentifier)' != '.NETCoreApp'" />
   </ItemGroup>
 
   <ItemGroup Label="String Resources">