diff --git a/workspaces/config/lib/index.js b/workspaces/config/lib/index.js
index e786828589aaf..8d2749f27452a 100644
--- a/workspaces/config/lib/index.js
+++ b/workspaces/config/lib/index.js
@@ -669,11 +669,11 @@ class Config {
       }
 
       if (this.localPrefix && hasPackageJson) {
-        const rpj = require('read-package-json-fast')
+        const pkgJson = require('@npmcli/package-json')
         // if we already set localPrefix but this dir has a package.json
         // then we need to see if `p` is a workspace root by reading its package.json
         // however, if reading it fails then we should just move on
-        const pkg = await rpj(resolve(p, 'package.json')).catch(() => false)
+        const { content: pkg } = await pkgJson.normalize(p).catch(() => ({ content: {} }))
         if (!pkg) {
           continue
         }