Aldi just came one step closer to taking over the American grocery industry

Aldi just made it easier for more people to shop there.

The grocery chain, which previously only accepted cash and debit cards, is now accepting all major credit cards including Visa, MasterCard, Discover and American Express.

The change will be especially meaningful to low-income shoppers who have to use credit cards to cover their expenses between paychecks.

Aldi is one of the world's biggest food retailers, and it's also one of the cheapest. The chain's prices for fresh produce and packaged goods are roughly 30% lower than Walmart's, according to a recent price check.

The company decided to start accepting credit cards based on customer feedback, a spokeswoman told Business Insider.

"As ALDI continues to evolve by expanding its product lines and moving into new markets, the way we do business will continue to evolve as well," Aldi CEO said Jason Hart said in a release. "We care about being able to make our customers' shopping experiences simpler and better every time they come to see us; and offering them the convenience of using their credit cards will help us do just that."

Aldi has about 1,500 stores in the US and has plans to open roughly 500 more stores over the next two years as part of a $3 billion expansion.

The chain recently announced an effort to offer more organic and natural food brands.

Aldi also said it removing some artificial ingredients from its products and adding more gluten-free items in hopes of attracting more health-conscious shoppers.

Aldi and rival discounter Lidl have upended the grocery market in the UK, forcing the nation's largest supermarkets to dramatically cut prices and lay off workers to stay competitive.