diff --git a/package.json b/package.json
index 80071da..e450e0b 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,7 @@
   "name": "glyphdiff",
   "private": true,
   "version": "0.0.1",
+  "packageManager": "yarn@4.11.0",
   "type": "module",
   "scripts": {
     "dev": "vite",