To update the token, go to the bot's control panel and follow the step shown in the screenshot, then a window will appear where you need to paste the updated token. But where do you get the updated token? The answer is below How to reissue the Telegram bot token and enter it on the website
To update the token, go to the bot's control panel and follow the step shown in the screenshot, then a window will appear where you need to paste the updated token. But where do you get the updated token? The answer is below @botfather token update
To get the updated token, you need to go to @botfather and select your bot. Then you need to find the command shown in the screenshot and update the token. After that, insert the received token on the site (as stated in point 1), and you will update your token.