Want to use Flickr, Fantasy Sports, or any other Yahoo service? It’s time to drag out your Yahoo credentials, because Google and Facebook logins will soon stop working.

Yahoo plans to gradually remove the Google and Facebook sign-in options from all Yahoo properties, as Reuters first reported. The first service to require a Yahoo login is Yahoo Sports Tourney Pick’Em, a bracket challenge focused on the upcoming NCAA college basketball tournament.

“This new process, which now asks users to sign in with a Yahoo username, will allow us to offer the best personalized experience to everyone,” a Yahoo spokesperson said via a statement to VentureBeat.

Former Yahoo CEO Carol Bartz opened up Yahoo services to Facebook and Google users in 2010 and 2011 — but current CEO Marissa Mayer clearly values native users above other guests.

Since Mayer took over in 2012, she’s acquired 30 companies and relaunched some high-profile services, including Yahoo Mail and Yahoo Finance. This latest move is part of her larger effort to tighten up the Yahoo ecosystem and regain control of its users.

If you haven’t used your Yahoo ID for a while (and care about keeping it), Yahoo now resets accounts after 12 months of inactivity, so you might want to log in and take a quick peek around.

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