# @babel/plugin-bugfix-v8-static-class-fields-redefine-readonly > Transform static class fields assignments that are affected by https://crbug.com/v8/12421 See our website [@babel/plugin-bugfix-v8-static-class-fields-redefine-readonly](https://babeljs.io/docs/babel-plugin-bugfix-v8-static-class-fields-redefine-readonly) for more information. ## Install Using npm: ```sh npm install --save-dev @babel/plugin-bugfix-v8-static-class-fields-redefine-readonly ``` or using yarn: ```sh yarn add @babel/plugin-bugfix-v8-static-class-fields-redefine-readonly --dev ```