Post ordering at tags pages

Hello!
I have several pages where posts are displayed by tags. For example: mysite.com/tag/{tagname}/ and there are posts that have relevant tag.
On this pages I trying to make posts ordering by date: oldest post should be first in list and newest should be the last (reverse to default). Added order: asc to collections in routes.yaml change order only for main page (I suspect that this is correct). But can you please suggest how to do the same ordering ( asc) for ‘tags pages’ where posts displaying?