Gwent Police is looking for 31-year-old Philip Jones from Blackwood, who has been recalled to prison for breaching his licence conditions.
Jones was released from prison on March 2 this year and was serving a 54-month prison sentence for possession of drugs with intent to supply.
Anyone with information can contact Gwent Police on 101, quoting reference 1700321979, or Crimestoppers anonymously on 0800 555 111.