[BUG] Unable to update peer dependencies in workspaces

[jabrks]

Is there an existing issue for this?

• I have searched the existing issues

This issue exists in the latest npm version

• I am using the latest npm

Current Behavior

I've setup a root package with a single workspace, and in that workspace I've installed React and another dependency that has defined a peer dependency on the same version of React. That version of React gets hoisted to the root node_modules and everything works as expected. If I then try to upgrade React, npm will leave that version intact and install the new version in the nested node_modules inside the workspace, leaving the other dependency using the old version of React with seemingly no way to upgrade it.

Expected Behavior

I would expect that when I upgrade the version of React that I installed, that this would update the version in the root node_modules to also be used by other dependencies that have specified React as a peer dependency, rather than installing a separate version in the nested node_modules for the workspace.

Steps To Reproduce

mkdir workspaces-repro
cd workspaces-repro

npm init -y
npm init -y -w packages/package

npm install react@16 react-dom@16 -w package
npm install -D @testing-library/react@12 -w package

# At this point, everything should be using React 16 from the root node_modules 
npm ls react

npm install react@17 react-dom@17 -w package

# React 17 has now been installed in the node_modules directory inside of the package workspace, and the testing library package is still using React 16 from the root node_modules
npm ls react

Environment

• npm: 8.8.0
• Node.js: v16.15.0
• OS Name: macOS Monterey 12.3.1
• System Model Name: MacBook Pro
• npm config:

; node bin location = /Users/james.brooks/.nvm/versions/node/v16.15.0/bin/node
; node version = v16.15.0
; npm local prefix = /Users/james.brooks/Desktop/workspaces-repro
; npm version = 8.8.0
; cwd = /Users/james.brooks/Desktop/workspaces-repro
; HOME = /Users/james.brooks
; Run `npm config ls -l` to show all defaults.

[wraithgar]

It's react-dom@16.14.0 inside @testing-library/react@12.1.5 that's holding you back. npm update react-dom will fix this situation. npm prioritizes keeping what's there if it already works.

[wraithgar]

This is still a minor bug, in that it keeps react-dom@16 under @testing-library/react@12.1.5, but at least you have a path to fixing your tree.

[jabrks]

That seems to have done the trick, thanks for the swift response!