Britain is catching up with the rest of the world and issuing the first polymer five-pound notes today.
The note is made from polymer, a type of plastic, and is supposed to be more hard-wearing than the traditional cotton notes we use at the moment. The Bank of England says it should last 2.5 times longer.
The note's plastic finish also makes it resistant to dirt and moisture, helping it to stay in good condition.
It's not just the material it's made out of that is changing. The design is different too, boasting a portrait of Sir Winston Churchill as well as a view of Westminster.
Beneath Sir Winston's portrait reads his declaration in his first speech as Prime Minister: "I have nothing to offer but blood, toil, tears and sweat.
The Bank of England will issue 440 million new notes, which will be distributed gradually.
It seems some couldn't resist the challenge of trying to destroy the new note, including Piers Morgan.
-- Good Morning Britain (@GMB) September 13, 2016
Good to luck to everyone spending the day trying to destroy the new five pound note. I'll be at work, trying to earn one.
-- Stuart Locker (@Daily_Stus) September 13, 2016
There are plans to replace our other notes with plastic equivalents over the next few years.
A new polymer £10 note featuring Jane Austen will be issued in summer 2017 and a £20 note featuring JMW Turner, by 2020.