Hastings will replace all-rounder Mitchell Marsh, who will be rested from Friday's Gabba match ahead of the third game of the series in Melbourne on Sunday.
"Mitch is a tremendous asset to Australian cricket and we are conscious of managing his workload and his travel, especially with so much cricket to come during the rest of this summer and beyond," chief selector Rod Marsh said in a statement.
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"By taking this decision we have opted to give him an extra day at home in Perth after match one, before he flies to Melbourne on Thursday to prepare for Sunday's third match of the series."
Marsh said Hastings was "a high-quality replacement" who had been in excellent form for the Melbourne Stars in the domestic Big Bash League.
"John also showed his quality with a match-winning spell of 3 for 21 in the decisive one-day international of the series against England in Manchester in September, so we know what he can do if called upon," he added.
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