TAMPA, Fla. (WFLA) — If you are a T-Mobile customer, your bill may get more expensive soon.

In a memo to employees cited by CNET and The Verge, consumer group president Jon Freier said older plans will be affected, but did not provide any specifics. He did, however, note that customers on Go5G plans and those covered by T-Mobile’s Price Lock guarantee will not see their prices increase.

The price increases, expected to come sometime this summer, will range between $2 and $5 per line, both outlets report. Freier wrote in the memo that this is the first time in nearly a decade that it has raised its rates.

An apparent T-Mobile customer shared a screengrab of a text sent by the phone provider, which reads in part that beginning June 5, “rate plan(s) will increase by $5 per line per month.” In response, the official X account for T-Mobile’s customer support said the price adjustments to the company’s “oldest rate plans” are due to “rising costs.”

Another X user shared a screengrab of a similar text that added their “other connected devices” would see a $2 increase per line per month. A response from T-Mobile’s customer support account noted that “the majority of our customers are not included” in the rate hikes.

T-Mobile did not share with Nexstar which plans will be impacted, but said in a statement that it is “committed to offering the best value in postpaid wireless with low prices and a differentiated, best-in-class 5G network – and we have no intention of ever changing that.”

“That being said, as inflation and costs continue to rise, for the first time in nearly a decade we’re making small adjustments to prices of some of our oldest rate plans,” the statement continued. “The majority of our customers are not included but the fraction who are will hear from us today.”

Last fall, T-Mobile confirmed it was moving some customers on older phone plans to newer options, causing some to see their bills increase. In January, the company raised the price of home internet for new customers by $10.

Earlier this year, Verizon and AT&T raised rates for customers with older unlimited plans.