Mine is expired and I entered the info anyway.

Last thing I need is them coming back asking me why I neglected to input my passport information when I clearly have one...considering they have a copy of it from my first DACA, lol.

There is also a statement somewhere in the instructions that for ID purposes in general, an expired passport is fine...so maybe overall that means expired passports are alright and that they don't care too much that it expired.