UNDATED (CNN) -- Delta announced it's changing its frequent flier rules by adding a spending requirement.
The bottom rung of its SkyMiles Medallion program will require a flier to spend at least $2,500 annually on tickets.
The next level requires $5,000 in ticket purchases, followed by $7,500.
Top rung benefits will require $12,500 in ticket spending.
The new requirements mean some fliers may get bumped down to a lower rung or even out of the program.
A Delta spokesman says adding the spending requirement ensures their most valued customers get the best program benefits and a more exclusive experience.
The change starts on Jan. 1, 2014 for membership status in the 2015 program.