While the update hopes to make the delivery process easier, the change has not been well received by some customers.
A number of shoppers shared their disappointment by posting on Twitter.
One wrote: “As vulnerable customers, it is unbelievable that @tesco has increased our delivery charge by 150 percent.
“The fixed cost of a more flexible 8-hour slot is now 50 percent more than a less flexible four-hour non-priority slot!”
Another added: “Pretty disgusted that you’ve put priority delivery slots up to £4.50 from £2.00 @Tesco!