diff --git a/Dapper.FastCrud/Dapper.FastCrud.csproj b/Dapper.FastCrud/Dapper.FastCrud.csproj
index 53f2653..ae38501 100644
--- a/Dapper.FastCrud/Dapper.FastCrud.csproj
+++ b/Dapper.FastCrud/Dapper.FastCrud.csproj
@@ -29,7 +29,7 @@
     <Reference Include="System.ComponentModel.DataAnnotations" />
   </ItemGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' != 'net461' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' OR '$(TargetFramework)' == 'netstandard2.1' ">
     <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
   </ItemGroup>