St Mirren have also told striker Alan Reid that they will not be extending his contract.
Midfielders Stephen O'Donnell and Garry Brady have been offered one-year deals.
But Buddies manager Gus MacPherson has rubbished reports linking him with Celtic forward Paul McGowan, who spent time on loan at Cappielow.
"When Morton tried to buy him from Celtic, they were quoted a transfer fee of �250,000," he told St Mirren's website.
"For that type of fee, there is no chance of us going for him."
MacPherson confirmed that he was still interested in Inverness Caley Thistle forward Dennis Wyness but has still not heard from the striker's representatives.
The Buddies boss also said he knew nothing of reported interest in midfielder Andy Dorman.
MacPherson pointed out that Dorman, who has been linked with Bolton, Plymouth, Crewe and Carlisle, still has another year of his contract to run.
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