Time is running out on using your Facebook or Google account to sign in to Flickr.

Yahoo has notified Flickr users that starting June 30th, the only way to access your Flickr account is through a Yahoo account. Like it’s done with some other services already, Yahoo is phasing out third-party logins from its services. Doing so with Flickr is bound to cause a little friction, however, simply due to its large user base.

Yahoo is asking current Flickr users who log-in via Facebook or Google to log-in that way one more time – but only so that they can create a new Yahoo account. If you already have a Yahoo account, you can connect your Flickr account here.

This shouldn’t come as a surprise if you’ve followed Yahoo news this year. Back in March, reports indicated that Yahoo would be removing the option to sign in to its services via third-party apps. They started, in March, by removing Facebook and Google logins from Yahoo Sports Tourney Pick’Em.

“Yahoo is continually working on improving the user experience,” Yahoo told Reuters. “[It] will allow us to offer the best personalized experience to everyone.”

By forcing Flickr users to log in via Yahoo, the company can boost its core user base. It’s that simple.