Dependency Error on "npm i" on freshly cloned repository

[be-ne-ef]

On freshly cloned repository, "npm i" will result in dependency error:

myuser@My-MacBook-Pro eleventy-webpack-orig % npm i
npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: eleventy-webpack@undefined
npm ERR! Found: markdown-it@12.0.4
npm ERR! node_modules/markdown-it
npm ERR!   dev markdown-it@"^12.0.3" from the root project
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer markdown-it@">= 9.0.0 < 12.0.0" from markdown-it-attrs@3.0.3
npm ERR! node_modules/markdown-it-attrs
npm ERR!   dev markdown-it-attrs@"^3.0.3" 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! 
npm ERR! See /Users/myuser/.npm/eresolve-report.txt for a full report.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/myuser/.npm/_logs/2021-02-22T10_55_22_280Z-debug.log

Steps to reproduce:

• git clone https://github.com/clenemt/eleventy-webpack.git eleventy-webpack
• cd eleventy-webpack
• npm i

[szegheo]

I've just got the same error.
In package.json I changed markdown-it-attrs to ^4.0.0 and now npm i runs fine.