EAD renewal (L2)

I came to US on 26th Dec 2015 on L1B visa with my wife who is on L2. I have valid I-94 and visa until Sep’18

My wife passport validity was untill 7th May 2017.So I-94 she got is valid until 7th May’17.

She got EAD in March 2016 which also has validity untill 7th May 2017.

Now in Jan 2017, She got new passport which is valid untill Jan’ 2027.

Does she need updated I-94? for EAD renewal as present I-94 is valid untill 7th May’17

How we can get her updated I-94?, do she need to go out of county? or visit CBP office.
We are based out of Austin.