Ember Component - Cannot set property tagName of #

I have updated Ember 2.3 recently. In one of our component, We have used 'tagName' as properties like below:

export default Ember.Component.extend({ layout, tagName: 'div' }

It was okay with old Ember. But in the recent one, I am getting the following error.

Uncaught TypeError: Cannot set property tagName of # which has only a getter

Could anybody of you suggest me any clue of the issue.