The ruling will include Pacific seasonal workers but advocates say more needs to be done to protect workers from exploitation.
Joe Karu from the Vanuatu National Workers Union welcomes the news, saying that previously the piece rate meant some seasonal workers couldn't keep up with the cost of living.
"It's very good news," he said.
Pacific labour expert Rochelle Lee Bailey from the Australian National University has examined the seasonal workers scheme since 2007 and said this decision is a long time coming.
