diff --git a/package.json b/package.json
index 4b7d76c..9cb3e6b 100644
--- a/package.json
+++ b/package.json
@@ -65,5 +65,6 @@
     "ts-node": "^10.1.0",
     "typechain": "^8.0.0",
     "typescript": "^4.5.2"
-  }
+  },
+  "packageManager": "yarn@1.22.22"
 }