Boeing Co. and US prosecutors said they’re working to hammer out a new deal to settle a criminal case stemming from two fatal 737 Max crashes after a federal judge blocked an earlier plan because it included race as a factor for selecting a compliance monitor.

The U.S. Justice Department and Boeing told a court on Friday they have not reached agreement on a revised plea deal after a U.S. judge in December rejected the deal, faulting a diversity and inclusion provision.

Boeing and U.S. Justice Department have not reached agreement on revised plea deal for 737 MAX crashes, asking a U.S. District Judge to give them until February 16 to provide a new update.

The nation’s top aviation regulator says Boeing needs “a fundamental cultural shift” to put safety and quality above profits.