diff --git a/package.json b/package.json
index b7f3f7f..32c140e 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
     "express": "^4.21.2",
     "open": "^10.1.0"
   },
+  "packageManager": "pnpm@7.1.7",
   "devDependencies": {
     "@modelcontextprotocol/sdk": "^1.11.2",
     "@types/express": "^5.0.0",