yarn install --flat git add node_modules Then the next time you run yarn upgrade: yarn upgrade --flat git diff Carefully read through what change

yarn install --flat git add node_modules Then the next time you run yarn upgrade: yarn upgrade --flat git diff Carefully read through what changed in each of the packages. git add node_packages git commit -m "yarn upgrade" You will see a lot of bad code, but also learn stuff. But most importantly - your project will be secure.