Should USCIS be notified if using EAD to change job?

July 2nd 485 filer. 140 approved. Both LD's and my EAD and AP approved. I am the primary applicant. LD is on H-1 but got laied off this week. LD plan to work using EAD. Should we notify USCIS about the status and employer change? If yes, how?
Thanks and Happy Lunar New Year!