Dickson signed a four-year, $14.5 million contract extension with the Seahawks on Friday, Mike Garafolo of NFL Network reports.
Dickson averaged 49.6 yards per punt and landed 32 of 61 boots (52 percent) inside the 20-yard line over 16 games during the 2020 season.
Dickson averaged 45.1 yards per punt and landed 34 punts inside the 20-yard line in 2019.
Dickson was named the Seahawks' starting punter after Jon Ryan was released Monday, Bob Condotta of The Seattle Times reports.
The Seahawks selected Dickson in the fifth round of the 2018 NFL Draft, 149th overall.