'remove old version of eslint that causes a conflict

When I run npm run watch I get this message Do you want to install 'webpack-cli' (yes/no):

I type y then I get an error indicating a conflict of eslint versions

npm ERR! Found: [email protected]
npm ERR! node_modules/eslint
npm ERR!   dev eslint@"^4.19.1" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer eslint@"^5.0.0" from [email protected]
npm ERR! node_modules/eslint-plugin-vue
npm ERR!   dev eslint-plugin-vue@"^5.0.0" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR!

PS: I don't prefer to use npm install --legacy-peer-dep as workaround to ignore peer deps and proceed with the installation anyway, yet I need to delete it definitively

is there a way to completly remove the old version so I won't get any troubles ?

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