UPDATE: THE lockout at Lindeman's Karadoc site, near Mildura, has ended after the union and Treasury Wines Estate reached a deal.
The company locked out workers overnight after a pay dispute wasn't resolved after eight months of negotiations.
READ MORE: Treasury Wines threatens lock out
Australian Workers' Union Victorian Secretary Cesar Melhem said the company over reacted with the lockout.
Weekly Times Now understands the site has about 150 workers, including 85 union members, and that non-union members are at work today.
Workers will return to the site at the start of their next shift.
The deal includes three-and-a-half per cent annual increases backdated to July 1, a $750 sign-on payment and accident make-up pay for injured workers.
A Treasury Wines Estate spokeswoman said an in-principle agreement had been reached.
"While we still have a number of administrative procedures to undertake, we're hopeful of being in a position to put a new draft Enterprise Agreement to an employee ballot shortly.
"We're working towards some of the preliminary administrative procedures being completed in time for employees to recommence work tonight from 11pm."