Netflix has raised its prices again for some plans in the United States. The biggest change is to the premium plan, which supports 4K streaming and up to four simultaneous streams; it's going from $11.99 to $13.99 per month. The mid-tier plan that gives you two streams in HD is jumping just one dollar from $9.99 to $10.99.

The entry-level plan that offers only one stream in standard definition remains unchanged at $7.99—the same price as the most basic streaming-only plan when it was first introduced back in 2010.

The info on Netflix's page for starting new plans has already been updated to these new numbers, but if you're on one of these plans already, the plan-switching page in your account settings still shows the old prices. Mashable reports that existing customers will see the change in November and will be notified on October 19 that it's coming.

Netflix has occasionally bumped its prices by a dollar or two at a time over the past several years. For comparison, Hulu's ad-free on-demand streaming plan costs $11.99 and includes some content in 4K—though not nearly as much as you'll find in Netflix's library, and only on game consoles. HBO Now is $14.99 and doesn't offer 4K, and Showtime is slightly cheaper at $10.99 per month. Ad-free CBS All Access is $9.99, but it offers a much more limited library than Netflix.

There is Amazon Prime, arguably Netflix's closest direct competitor, which costs $99.99 annually and comes with Amazon Prime Video along with tons of perks that Netflix doesn't offer, like free shipping on physical packages, a library of e-books, and other perks for Amazon services like Twitch. However, Amazon began offering Amazon Prime Video on its own for just $8.99 per month last year. In either case, it's cheaper than Netflix's HD and 4K plans, although slightly more than the entry-level SD plan.

The painful economic realities of dependency on licensed content from other networks have led Netflix and its competitors to invest more and more in original content. Netflix notified its shareholders earlier this year that it would raise more than $1 billion, and based on the company's stated strategy, we can expect much of that to go to original content production. The company was marginally profitable in the second quarter of this year, but it is also borrowing money to fund new content.

High-quality TV shows and movies are a very expensive business, so slowly climbing streaming plan prices shouldn't come as a surprise.