Four month old suddenly refusing crib naps

My baby just turned four months old 2 days ago and today, he’s really been refusing the hell out of crib naps. I’d usually try to get one or two in a day and he’d sleep for at least 35-40 minutes, on occasion he’d give me 1.5-2 hours. Last night was rougher than the usual one MOTN feed, woke up twice and also was up at 6:30 for the day. He’s been sleeping great overnight. and independently going down in the crib awake. I tried a crib nap for the first nap of the day, blatantly refused it. Is this the four month regression/progression!