William Kerr, 59, was found guilty of the murder of Maureen Comfort in Leeds in January 1996.
She had been strangled.
He was released from prison on licence in August 2020.
Leeds thunderstorms warning as Met Office shares latest weather forecast
Bloody machete attack on busy Leeds street left man scarred for life
York Road incident: Police appeal after pedestrian killed in crash outside Leeds Dogs Trust
Leeds Bradford Airport: Full statement on August security staff strike
Lamborghini pictured with car on top of its bonnet at busy Leeds junction following crash
However, his licence has been revoked and he has now been recalled to custody.
North Yorkshire Police said they are urgently searching for him.
A North Yorkshire Police spokesman said: "We are urgently searching for a man who has been recalled to prison.
"Kerr is known to have connections across Yorkshire.
"Please contact us straight away if you see him, or know where he is.
"To provide information, dial 101 - for an immediate sighting, dial 999."