Jeep 4.7 o2 sensors issue

Hopefully someone could help me on this one. I am getting a check engine light with codes p0141 and p0161which are the rear o2 sensors. I replaced both rear sensors with brand new mopar brand sensors. The codes keep coming back. I have checked the wiring and the fuses and everything is good. Not sure what else to check here. I just think its odd that out of nowhere both rear sensors have a problem at the same time.

If anyone could help me out on this one, thanks

Jeep 4.7 o2 sensors issue