[recaptcha] generates W3C errors

Hi,
The form inserted by [recaptcha] is generating two W3C errors we need to resolve:

Error: The frameborder attribute on the iframe element is obsolete. Use CSS instead.

<iframe src="https://www.google.com/recaptcha/api/fallback?k=6LdrNg0UAAAAAOl6ea_UNgkKSu_Fdgi6t_FKmtN9" frameborder="0" scrolling="no" style="width: 302px; height:422px; border-style: none;">

Error: The scrolling attribute on the iframe element is obsolete. Use CSS instead.

<iframe src="https://www.google.com/recaptcha/api/fallback?k=6LdrNg0UAAAAAOl6ea_UNgkKSu_Fdgi6t_FKmtN9" frameborder="0" scrolling="no" style="width: 302px; height:422px; border-style: none;">

Can you assist? Thanks in advance