Product alias update

Hi,
I previously created a special offer with the price inside the title :
ie : Special offer xxx at 100€

Because there is no Copy icon for products, I wanted to update the offer to a lower price. No problem, editing the product.
I then changed the product tite :
ie : Special offer yyy at 80€

The title is correctly displayed, but in my browser I see in the URL, the old alias :
ie www.toto.com/.../special_offer_xxx_at_100

How to update the alias which is not visible in the editor (not like in joomla articles)
Thanks for help.
Regards

PS : Maybe you can just add a "Copy priduct icon" ?

Thanks, it works after a flush.