Husky install: .git can't be found

Environment: WSL Ubuntu, bash terminal Yarn workspaces + lerna monorepo

I’ve migrated from v4 to v6 as per instruction (https://typicode.github.io/husky/#/?id=migrate-from-v4-to-v6). The .git directory, package.json file and the .husky all live at the same level (INB4: https://typicode.github.io/husky/#/?id=custom-directory). Command husky install (@package.json, scripts.prepare) fails with “Error: .git can’t be found (see https://typicode.github.io/husky/#/?id=custom-directory)” message. I can assure you the .git dir is there and I have all the required permissions

The line that fails:

if (!fs.existsSync('.git')) {
    throw new Error(`.git can't be found (see ${url})`);
}

Thank you!