To update all packages and package.json to the latest stable version. Install npm-check-updates package

npm i -g npm-check-updates

Then to update package.json with all the latest version numbers

ncu -u

Then to install updated packages from updated package.json

npm install

If in a rails project

yarn install && yarn upgrade --latest

To update all gems and node packages. Be very careful

bundle update --all && ncu -u && yarn install && yarn upgrade --latest