diff --git a/package.json b/package.json
index f51ad67..713f9e7 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,7 @@
   "name": "climate-key",
   "type": "module",
   "version": "0.0.1",
+  "packageManager": "^pnpm@9.4.0",
   "scripts": {
     "dev": "astro dev",
     "start": "astro dev",
@@ -14,4 +15,4 @@
     "bech32": "^2.0.0",
     "chia-bls": "^1.0.2"
   }
-}
\ No newline at end of file
+}