No. I’ve used all-purpose flour in this carrot muffin recipe but you could use gluten-free flour instead such as Bob’s Red Mill. If you don’t have gluten sensitivities then all-purpose flour is an excellent choice as it’s a very sturdy flour that will help to suspend ingredient add-ins such as the grated carrot, nuts, and golden raisins without them sinking to the bottom of the muffin batter.