diff --git a/package.json b/package.json
index b6ee745..c888d42 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
     "ata",
     "deno"
   ],
+  "packageManager": "pnpm@9",
   "author": "",
   "license": "ISC",
   "devDependencies": {