Syfy has canceled its Superman prequel series Krypton, according to The Hollywood Reporter.
Krypton will not move forward with a third season. THR cites flagging viewership numbers as the cancellation's cause, with Krypton season 2 drawing an average of only 408,000 live viewers per episode compared to season one's average of 1.8 million.
Krypton season one marked Syfy's most watched debut series in four years, with the premiere drawing its best series premiere ratings in three years.
Syfy's planned Krypton spin-off show Lobo has also been canceled.