The max. seating capacity of these aircrafts changed as a high density cabin configuration allows to use 103 seats.
http://IAC certified...et 100 aircraft
http://www.sukhoi.or...characteristic/
103 pax
103Y/31"
Small FWD galley, 2 lavatories
http://www.interjet.com/our-fleet.aspx
"The Superjet 100, has capacity for up to 103 passengers, we adapt with a capacity of 93 passengers, with an exclusive Pininfarina’s interior design."
Interjet using this aircraft with 93 seats with 34" seat pitch, so there is space to use denser configs if necessary.