"The information exposed by Wappalyzer is already public to anyone and hiding it does not make your website secure. In most cases hiding a technology's characteristics ranges from impractical to impossible but as long as your software is up-to-date, it's not something to worry about."
Nevertheless, if you're determined to hide these technologies, you might want to check out this repo to understand how Wappalyzer detects the technologies you're using: https://github.com/enthec/webappanalyzer.