Preheat the oven to 350 degrees Fahrenheit.
In a small, microwave-safe bowl, heat the vegan chocolate chips for 30 seconds. Stir with a fork until smooth. If there are lumps, microwave in 20-second intervals, stirring in between, until smooth.
Blend the melted vegan chocolate, pumpkin puree, silken tofu, brown sugar, vanilla extract, pumpkin pie spice, and ground cinnamon in a blender until completely smooth.
Pour the pie mixture into the prepared crust and bake for 30 minutes.
Allow the pie to set in the refrigerator overnight or for at least 6 hours.