diff --git a/website/package.json b/website/package.json
index 96953bff..3f5be5b1 100644
--- a/website/package.json
+++ b/website/package.json
@@ -42,6 +42,7 @@
     ]
   },
   "devDependencies": {
+    "@babel/plugin-proposal-private-property-in-object": "^7.21.11",
     "gh-pages": "^6.1.1"
   }
 }