News | UK£45m upgrade scheme for cash machines ahead of plastic notesUpgrade: High street banks will have to replace existing cash machinesAndrew Matthews/PA WireJonathan Prynn, Business Editor @JonPrynn18 March 2016High street banks are having to replace or upgrade thousands of cash machines because they cannot grip the new “slippery” plastic notes.Polymer notes, which are longer-lasting and more difficult to forge, are hard for the rollers in many ATMs and counting machines to grip.The ATM upgrade programme is costing an estimated £45 million but if vending machines and counting machines are included the total bill could be as much as £240 million.Andy Mattes, chief executive officer with ATM maker Diebold, told Bloomberg financial news service: “Every bank has a polymer note project team working right now.”The first £5 polymer notes, featuring Sir Winston Churchill, will be issued in September, followed in 2017 by £10 notes featuring Jane Austen.New £20 notes will be out by 2020.MORE ABOUTcash machineBank