diff --git a/src/Components/Blazor/Validation/test/Microsoft.AspNetCore.Blazor.DataAnnotations.Validation.Tests.csproj b/src/Components/Blazor/Validation/test/Microsoft.AspNetCore.Blazor.DataAnnotations.Validation.Tests.csproj
index 02e8561536..199d86622f 100644
--- a/src/Components/Blazor/Validation/test/Microsoft.AspNetCore.Blazor.DataAnnotations.Validation.Tests.csproj
+++ b/src/Components/Blazor/Validation/test/Microsoft.AspNetCore.Blazor.DataAnnotations.Validation.Tests.csproj
@@ -2,10 +2,14 @@
 
   <PropertyGroup>
     <TargetFramework>$(DefaultNetCoreTargetFramework)</TargetFramework>
+    <!-- Avoid CS1705 errors due to mix of assemblies brought in transitively. -->
+    <CompileUsingReferenceAssemblies>false</CompileUsingReferenceAssemblies>
   </PropertyGroup>
 
   <ItemGroup>
     <Reference Include="Microsoft.AspNetCore.Blazor.DataAnnotations.Validation" />
+    <!-- Avoid CS1705 errors due to mix of assemblies brought in transitively. -->
+    <Reference Include="Microsoft.AspNetCore.Components" />
   </ItemGroup>
 
 </Project>