diff --git a/package.json b/package.json
index 080f70cc..783b6df0 100644
--- a/package.json
+++ b/package.json
@@ -6,6 +6,7 @@
     "node": ">=20",
     "pnpm": ">=9.0.0"
   },
+  "packageManager": "pnpm@9.1.0",
   "scripts": {
     "dev": "pnpm build && turbo dev --filter='./packages/*' --filter=@vue-flow/examples-vite",
     "dev:docs": "turbo dev --filter=@vue-flow/docs",