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Gillingham have agreed deals with Championship side Ipswich for two of their young players.
Striker Jack Marriott has joined on loan until the end of the season while Hewitt has agreed a deal until the end of the month.
Marriott has signed in time to be involved in the televised League 1 match against Wolves at Priestfield on Friday night.
Hewitt has already been on loan with the Gills but an ankle injury saw that cut short. He has now re-signed for another month, although it is doubtful whether he will be fit enough to face Wolves.
Hewitt's last appearance for the Gills was against Stevenage, at home. He made three appearances during his brief stay, playing at right-back and in midfield.
Promising young striker Marriott arrives fresh from a prolific spell with Woking, where he hit eight league goals in seven appearances.
The Gills have also announced that young striker Harry Grant, who made an appearance for the first team at the end of last season, has agreed a permanent move to Maidenhead United.