add class to links generated by wp_list_categories

I am using the wp_list_categories() function and it is outputting a list with each
<li> containing an <a>
The <li> tags are being given a cat-item class but no classes are being given to the <a> tags.
How do I add a class to the <a> tags?

<li class="cat-item cat-item-207"><a href="https://www.olliepress.dev/category/css/">some text</a>
</li>