Do I need to change my EIN?

I have an EIN for online retail under my initial small business name. I do not have an LLC just a sole proprietorship. I have since changed the name of my business (still online retail) so now it doesn’t match my EIN. Online retail has been a gamble for me and I haven’t made any sales, I’m really just testing different products. Do I need to change the name of my EIN to my current business name and get an LLC or am I fine to wait until I make a few successful sales and then switch everything? I had a DBA but it expired so I don’t have one currently. I am located in Michigan but operate entirely online if it makes a difference. All of this stuff is really confusing. Any help is appreciated