He and the club endured a difficult 2016–17 campaign, which Dickinson said was the most "mentally challenging" of his career after the "Magpies" faced a change of ownership, manager and an unexpected relegation battle. He had expected to help lead a promotion charge under manager John Sheridan, but ended the season at Meadow Lane fighting on-loan Arsenal defender Marc Bola for the left-back spot under new boss Kevin Nolan.
Dickinson's 2016–17 season was marked by significant challenges, including a change in ownership, manager, and relegation. He faced competition for a starting spot with Marc Bola during the season.