Preheat the oven to 350°F (180°C) and prepare a 9" unbaked vegan pie crust. No need to prebake.
In a blender or large mixing bowl, combine pumpkin purée, coconut milk, brown sugar, cornstarch, maple syrup, vanilla extract, pumpkin pie spice, cinnamon, and salt. Blend or mix until smooth.
Pour the mixture into the prepared pie crust. Use a spatula to spread it evenly and smooth the top.
Bake for 60 minutes. The edges will be slightly cracked, and the center will appear wobbly when done.
Allow the pie to cool to room temperature, then chill uncovered in the refrigerator for at least 4 hours or overnight until fully set.
Serve as-is or with a dollop of vegan coconut whipped cream. Enjoy!