I've had the same one about my rabbit and foxes. My rabbit died of old age 20 years ago, yet it was one of my childhood fears so it still raises its head. Dreams are usually about basic emotion.
Why do I keep having the same nightmare over and over again?
Your brain is trying to find an answer to something bothering you. Think carefully about what is represented in the nightmare and see if you can connect that with something going on in your life.