Preheat oven to 425°F and line a sheet pan with parchment paper or lightly grease it.
In a small bowl, whisk together maple syrup, Dijon mustard, olive oil, minced garlic, thyme, and paprika.
Pat chicken thighs dry and season both sides with salt and pepper, then place skin-side up on the sheet pan.
Arrange carrot pieces around the chicken on the pan.
Brush the maple Dijon mixture generously over the chicken and toss the carrots in any remaining glaze.
Roast for 30-35 minutes until chicken reaches an internal temperature of 165°F and carrots are tender and caramelized.
Let rest for 5 minutes, garnish with fresh parsley, and serve.