Shipperley is without a club having been released by Premiership side Sheffield United earlier this month.
"Neil Shipperley is available as Sheffield United have paid up his contract but he is one of a lot of players who are available," said Jepson.
"I'm always interested in good players and he is a good player.
"I'm trying as hard as I can to bring players in. I have made enquiries about four or five players on my main list."