Steciljs Favicon

How can I change the Favicon of a Stencil PWA ?
I’ve changed the favicon.ico file inside src/assets/icon and done npm run build

Inside www/assets/icon all the files, also favicon.ico has change correctly, but when I check my pwa with npm start, the favicon it’s the older one.

I don’t get how to change it. Can someone help? Thank you.