diff --git a/README.md b/README.md
index ec690332..1ccefa7f 100644
--- a/README.md
+++ b/README.md
@@ -137,7 +137,7 @@ It's **always** recommended to commit the lockfile of your package manager for s
 
 The action has a built-in functionality for caching and restoring dependencies. It uses [actions/cache](https://github.com/actions/cache) under the hood for caching global packages data but requires less configuration settings. Supported package managers are `npm`, `yarn`, `pnpm` (v6.10+). The `cache` input is optional.
 
-Caching is turned on by default when a `packageManager` or `devEngines.packageManager` field is detected in the `package.json` file. The `package-manager-cache` input provides control over this automatic caching behavior. By default, `package-manager-cache` is set to `true`, which enables caching when a valid package manager field is detected in the `package.json` file. To disable this automatic caching, set the `package-manager-cache` input to `false`.
+Caching is turned on by default when a `packageManager` field is detected in the `package.json` file. The `package-manager-cache` input provides control over this automatic caching behavior. By default, `package-manager-cache` is set to `true`, which enables caching when a valid package manager field is detected in the `package.json` file. To disable this automatic caching, set the `package-manager-cache` input to `false`.
 
 ```yaml
 steps:
@@ -147,7 +147,7 @@ steps:
     package-manager-cache: false
 - run: npm ci
 ```
-> If no `packageManager` or `devEngines.packageManager` field is detected in the `package.json` file, caching will remain disabled unless explicitly configured.
+> If no valid `packageManager` field is detected in the `package.json` file, caching will remain disabled unless explicitly configured.
 
 The action defaults to search for the dependency file (`package-lock.json`, `npm-shrinkwrap.json` or `yarn.lock`) in the repository root, and uses its hash as a part of the cache key. Use `cache-dependency-path` for cases when multiple dependency files are used, or they are located in different subdirectories.
 
diff --git a/__tests__/main.test.ts b/__tests__/main.test.ts
index 96a79825..5af57092 100644
--- a/__tests__/main.test.ts
+++ b/__tests__/main.test.ts
@@ -285,28 +285,6 @@ describe('main tests', () => {
   });
 
   describe('cache feature tests', () => {
-    it('Should enable caching with the resolved package manager from devEngines.packageManager in package.json when the cache input is not provided', async () => {
-      inputs['package-manager-cache'] = 'true';
-      inputs['cache'] = ''; // No cache input is provided
-
-      inSpy.mockImplementation(name => inputs[name]);
-
-      const readFileSpy = jest.spyOn(fs, 'readFileSync');
-      readFileSpy.mockImplementation(() =>
-        JSON.stringify({
-          devEngines: {
-            packageManager: {
-              name: 'pnpm'
-            }
-          }
-        })
-      );
-
-      await main.run();
-
-      expect(saveStateSpy).toHaveBeenCalledWith(expect.anything(), 'pnpm');
-    });
-
     it('Should enable caching with the resolved package manager from packageManager field in package.json when the cache input is not provided', async () => {
       inputs['package-manager-cache'] = 'true';
       inputs['cache'] = ''; // No cache input is provided
diff --git a/dist/setup/index.js b/dist/setup/index.js
index f06d22c9..c6381da6 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -99683,21 +99683,17 @@ function resolveVersionInput() {
     return version;
 }
 function getNameFromPackageManagerField() {
-    var _a, _b;
-    // Check devEngines.packageManager and packageManager field in package.json
+    // Check packageManager field in package.json
     const SUPPORTED_PACKAGE_MANAGERS = ['npm', 'yarn', 'pnpm'];
     try {
         const packageJson = JSON.parse(fs_1.default.readFileSync(path.join(process.env.GITHUB_WORKSPACE, 'package.json'), 'utf-8'));
-        return (((_b = (_a = packageJson.devEngines) === null || _a === void 0 ? void 0 : _a.packageManager) === null || _b === void 0 ? void 0 : _b.name) ||
-            (() => {
-                const pm = packageJson.packageManager;
-                if (typeof pm === 'string') {
-                    const regex = new RegExp(`^(?:\\^)?(${SUPPORTED_PACKAGE_MANAGERS.join('|')})@`);
-                    const match = pm.match(regex);
-                    return match ? match[1] : undefined;
-                }
-                return undefined;
-            })());
+        const pm = packageJson.packageManager;
+        if (typeof pm === 'string') {
+            const regex = new RegExp(`^(?:\\^)?(${SUPPORTED_PACKAGE_MANAGERS.join('|')})@`);
+            const match = pm.match(regex);
+            return match ? match[1] : undefined;
+        }
+        return undefined;
     }
     catch (err) {
         return undefined;
diff --git a/src/main.ts b/src/main.ts
index 0b622102..f169cef0 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -127,7 +127,7 @@ function resolveVersionInput(): string {
 }
 
 export function getNameFromPackageManagerField(): string | undefined {
-  // Check devEngines.packageManager and packageManager field in package.json
+  // Check packageManager field in package.json
   const SUPPORTED_PACKAGE_MANAGERS = ['npm', 'yarn', 'pnpm'];
   try {
     const packageJson = JSON.parse(
@@ -136,20 +136,15 @@ export function getNameFromPackageManagerField(): string | undefined {
         'utf-8'
       )
     );
-    return (
-      packageJson.devEngines?.packageManager?.name ||
-      (() => {
-        const pm = packageJson.packageManager;
-        if (typeof pm === 'string') {
-          const regex = new RegExp(
-            `^(?:\\^)?(${SUPPORTED_PACKAGE_MANAGERS.join('|')})@`
-          );
-          const match = pm.match(regex);
-          return match ? match[1] : undefined;
-        }
-        return undefined;
-      })()
-    );
+    const pm = packageJson.packageManager;
+    if (typeof pm === 'string') {
+      const regex = new RegExp(
+        `^(?:\\^)?(${SUPPORTED_PACKAGE_MANAGERS.join('|')})@`
+      );
+      const match = pm.match(regex);
+      return match ? match[1] : undefined;
+    }
+    return undefined;
   } catch (err) {
     return undefined;
   }