Patreon won't move your pledge automatically. So please manually update your pledge. Otherwise you'll probably be charged wrongly on the first of next month (June).
I recommend pledging to the $8 as that is the combined replacement for the $5 and $10 tiers.
If you want to see why and what the $15 and $30 tiers do check out this post >> https://www.patreon.com/posts/patreon-rework-65384601