AITA for picking my kid over my dog?

So back story, I've had my dog since he was 3 months old and is now 3 years old. My kid is 2 years old going on 3 in December. They've never had an issue before the two of them were best buddies until about 3 weeks ago when my dog bit my baby. It honestly was my kiddo's fault because he chased him into a corner under kitchen table and kept hitting him. My dog, who has never bitten anyone before, bit my kids leg pretty good. My kid is now traumatized and would scream everytime he saw the dog so I made arrangement to give him away. This after 2 weeks of sleepless nights and multiple headaches. I found someone who was willing to take my sweet boy at church and handed him over this past Sunday. AITA for giving him away or am I doing what's best for my kid?