diff --git a/scripts/tasks/sandbox-parts.ts b/scripts/tasks/sandbox-parts.ts
index f139d09a8532..37f62ef4fb9c 100644
--- a/scripts/tasks/sandbox-parts.ts
+++ b/scripts/tasks/sandbox-parts.ts
@@ -371,12 +371,12 @@ export const addStories: Task['run'] = async (
   const storiesPath = await findFirstPath([join('src', 'stories'), 'stories'], { cwd });
 
   const mainConfig = await readMainConfig({ cwd });
+  const packageManager = JsPackageManagerFactory.getPackageManager();
 
   // Ensure that we match the right stories in the stories directory
-  const packageJson = await import(join(cwd, 'package.json'));
   updateStoriesField(
     mainConfig,
-    (await detectLanguage(packageJson)) === SupportedLanguage.JAVASCRIPT
+    (await detectLanguage(packageManager)) === SupportedLanguage.JAVASCRIPT
   );
 
   const isCoreRenderer =