The Blues face early January trip to Kent
Town's scheduled Boxing Day fixture away at Gillingham has been postponed at the request of The Gills.
The Blues will now travel to MEMS Priestfield Stadium on Saturday, 8 January.
Kick-off in Kent will be at 3pm.
An EFL statement said: "Gillingham’s Sky Bet League One fixture versus Ipswich Town on Sunday, 26 December has been postponed.
"Gillingham informed the EFL that it would be unable to fulfil the fixture at Priestfield due to a number of positive Covid-19 cases in their squad.
"In light of the increased transmission rate of the Omicron variant, the EFL will now review the circumstances surrounding the postponement. In addition it will assist affected Clubs throughout this challenging period to help them mitigate against the risk of infection amongst players and staff, while ensuring their obligations to the EFL regulations are maintained."
Tickets purchased for the Boxing Day clash will be valid for rearranged date, but please contact the ticket office if you would like a refund. Tickets will be back on sale from 10am on Thursday, 23 December.