Fonst size in widgets changed after latest update

Hi,

Since my last update the font size on my website changed, but only in the widgets.
So all font stayed in the same size, 17, but the text in the widgets in the sidebar en the footer got smaller.

It only seems to have had an effect on widgets containing links, like a menu widget. The text widget is the only one not effected.
All the widget titles also remained the same. So it only affects the links in the widgets.
Can you tell me how to make the font in these widgets 17 again?
And maybe there is also some code that can help me increase the font inside the mega menu?
I pasted a link to my website so you can see that the footer has 3 widgets with smaller font and the last one on the right is the right font.

Thanks, very happy with the theme.