Prices are fluctuating at Whole Foods.

The organic grocery store has raised prices on some items while discontinuing others, The Wall Street Journal reported, citing a leaked email.

A Whole Foods spokesperson said in a statement to Business Insider that the higher prices were because of rising material, packaging and transportation costs.

The increase is because of some item-specific contracts expiring. Of about 700 items with expiring contracts, the store said it has decided to stop selling about half and raise prices on less than 50.

“Like all grocers, Whole Foods Market has experienced increased costs from suppliers due to materials, labor and transportation, and we’ve absorbed much of the inflation,” a Whole Foods spokeswoman said in a statement. “Many prices have also decreased, and we continue to expand the number of promotions we offer to give our customers better value.”

More than 100 items are also seeing net price reductions under new contracts, the spokesperson said. The items are chosen for renewal or promotion based on customer buying habits.

These new price changes come after the highly publicized price reductions Amazon made when it purchased Whole Foods in 2017. The price cuts were made to ease the store’s “Whole Paycheck” image—meaning it’s too expensive for the average consumer.

Whole Foods said it isn’t pulling away from that initiative.

“We remain committed to continuing to lower prices with Amazon as we deliver on our mission to make high-quality, natural and organic food more affordable and accessible,” a Whole Foods spokeswoman said in a statement.