diff --git a/package.json b/package.json
index 4ce4896..56b3dc1 100644
--- a/package.json
+++ b/package.json
@@ -57,6 +57,7 @@
     ]
   },
   "devDependencies": {
+    "@babel/plugin-proposal-private-property-in-object": "^7.21.11",
     "@testing-library/jest-dom": "^6.5.0",
     "@testing-library/react": "^16.0.1",
     "gh-pages": "^6.1.1",