Heiskanen scored his first two goals of the season in Monday's 7-1 win over the Penguins.
The 25-year-old blueliner struck twice in the first period as the Stars put the game away early and took a 6-0 lead into the first intermission. Heiskanen was held off the scoresheet through the first seven games of 2024-25, but he's since woken up and has six points in his last seven contests.