Yelling?

My husband is an amazing father, partner, and encourages me to follow my dreams. He’s loyal, fun, and I legitimately consider him to be my best friend. Everyone in our life (us included) sees us as the perfect match. My one issue is his yelling. We don’t fight very often, so when we do it’s usually a result of work or parenthood stress (on both sides) combined with some minor thing like dishes, laundry, or one of us forgetting to do something around the house. He just YELLS though. Screams sometimes. It upsets me because it upsets my 2 year old, and I also get really shaken up by the tone of his voice myself. When I try to talk to him about it, he doesn’t show much motivation at all to work on that problem. I know we all yell sometimes, but we honestly can hardly even have a negative conversation without him raising his voice. What should I do?