Tech workers in a case accusing Apple, Google, Adobe and Intel of entering anti-poaching agreements asked a U.S. appeals court on Tuesday to reject the companies' settlement offer, which was previously denied by U.S. District Court Judge Lucy Koh.

In a court filing on Tuesday, a class of plaintiffs in the ongoing High-Tech Employee Antitrust Litigation requested that a federal appeals court deny a $324.5 million settlement proposal from the four tech giants, reports Reuters.

The motion harkens back to April, when the companies agreed to settle with the class over allegations of no-hire arrangements, but the offer was subsequently denied by Judge Koh, who said the amount was too low. Defendants fired back, saying in a September filing that Judge Koh "committed clear legal error" in deciding against the proposal.

Apple and its three co-defendants ultimately moved the issue up the ladder to an appellate court, which is in the process of hearing both sides of the story before remanding the case back to district court.