The kick-off time for the final pre-season friendly fixture, at home to Grimsby Town, has been brought forward two hours.
The fixture, which takes place on Saturday, August 14, will now kick off at 1pm.
Before then, the Spireites will face Aston Villa U23s on Wednesday afternoon in a private practice match and host Tamworth in a behind closed doors friendly on Saturday (3pm). There will be a live stream of the Tamworth match.
