No, once you set your subscription price, you cannot make any changes to it. It is important that you select a subscription price that you don’t plan to change.
If you would like to change the price of your subscription, you will have to delete your subscription and start over with the new price. When you delete your subscription, you will lose all of your current subscribers who will have to sign up again for your newly priced subscription.
*Please note that while Stripe technically allows you to make a change to your subscription price, doing so will not change the price displayed on Behance and therefore should not be done as a workaround.