bump sparks requirement to 3.2.1.
bump sparks requirement to 3.2.1.

1flow/1flow,1flow/1flow,WillianPaiva/1flow,WillianPaiva/1flow,WillianPaiva/1flow,1flow/1flow,WillianPaiva/1flow,WillianPaiva/1flow,1flow/1flow,1flow/1flow