Young keeper Aaron Chapman is having a short spell at Everton to help his development.
Chapman, who joined the Spireites from non-league Belper Town in the summer, will train with the Premiership club.
Manager Paul Cook said: "I have some contacts at Everton and we felt that the opportunity for Aaron to spend a week at a big club like that was too good an opportunity to miss.
"It will be a great for Aaron to spend time at a top-flight club, working with some respected coaches and top players. I am sure he will be benefit greatly from the experience."