diff --git a/package.json b/package.json
index 239d5e3a1..0c8b610e6 100644
--- a/package.json
+++ b/package.json
@@ -49,6 +49,7 @@
     "@babel/core": "^7.17.9",
     "@babel/plugin-proposal-class-properties": "^7.16.7",
     "@babel/plugin-proposal-decorators": "^7.17.9",
+    "@babel/plugin-proposal-private-property-in-object": "^7.16.7",
     "@babel/plugin-transform-runtime": "^7.17.0",
     "@babel/preset-env": "^7.16.11",
     "@commitlint/cli": "^16.2.3",