Since he’s not on the big board yet, don’t sweat it. Maybe keep an eye on it, but even if he does crack the 150 this year, which might be possible if his ath/def/bh/pass all move up 10 pts or so, he’s not going to be at risk of getting drafted until he’s in the 125 range - and even then it’s kind of silly to be thinking about slowing him IMO because it so rarely reaches down that low.
I wouldn’t worry about him at all, honestly. Develop him fully, and count on him to carry you next season.