diff --git a/README.md b/README.md
index 5bd5415..cf5c632 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ Install pnpm package manager.
 
 Version of pnpm to install.
 
-**Optional** when there is a [`packageManager` field in the `package.json`](https://nodejs.org/api/corepack.html).
+**Optional** when there is a [`packageManager` or `devEngines.packageManager` field in the `package.json`](https://nodejs.org/api/corepack.html).
 
 otherwise, this field is **required** It supports npm versioning scheme, it could be an exact version (such as `10.9.8`), or a version range (such as `10`, `10.x.x`, `10.9.x`, `^10.9.8`, `*`, etc.), or `latest`.
 
@@ -52,7 +52,7 @@ If `run_install` is a YAML string representation of either an object or an array
 
 ### `package_json_file`
 
-**Optional** (_type:_ `string`, _default:_ `package.json`) File path to the `package.json`/[`package.yaml`](https://github.com/pnpm/pnpm/pull/1799) to read "packageManager" configuration.
+**Optional** (_type:_ `string`, _default:_ `package.json`) File path to the `package.json`/[`package.yaml`](https://github.com/pnpm/pnpm/pull/1799) to read `packageManager` or `devEngines.packageManager` configuration.
 
 ### `standalone`
 
@@ -74,7 +74,7 @@ Location of `pnpm` and `pnpx` command.
 
 ### Install only pnpm without `packageManager`
 
-This works when the repo either doesn't have a `package.json` or has a `package.json` but it doesn't specify `packageManager`.
+This works when the repo either doesn't have a `package.json` or has a `package.json` but it doesn't specify `packageManager` or `devEngines.packageManager`.
 
 ```yaml
 on:
@@ -93,7 +93,7 @@ jobs:
 
 ###  Install only pnpm with `packageManager`
 
-Omit `version` input to use the version in the [`packageManager` field in the `package.json`](https://nodejs.org/api/corepack.html).
+Omit `version` input to use the version in the [`packageManager` or `devEngines.packageManager` field in the `package.json`](https://nodejs.org/api/corepack.html).
 
 ```yaml
 on: