React component view does not get update

I have a React component that manage multiple accordion in a list, but when i update a children, on React dev tools, it was showing the updated text but on the view/ui, it doesnt update. Please advice.

var AccordionComponent = React.createClass({
  getInitialState: function() {
  var self = this;
  var accordions = this.props.children.map(function(accordion, i) {
   return clone(accordion, {
    onClick: self.handleClick,
    key: i
  });
});

  return {
    accordions: accordions
  }
},
handleClick: function(i) {
  var accordions = this.state.accordions;

  accordions = accordions.map(function(accordion) {
    if (!accordion.props.open && accordion.props.index === i) {
      accordion.props.open = true;
    } else {
      accordion.props.open = false;
    }
    return accordion;
  });

  this.setState({
    accordions: accordions
  });
},
componentWillReceiveProps: function(nextProps) {
  var accordions = this.state.accordions.map(function(accordion, i) {
    var newProp = nextProps.children[i].props;

    accordion.props = assign(accordion.props, {
      title: newProp.title,
      children: newProp.children
    });

    return accordion;
  });

  this.setState({
    accordions: accordions
  });
},
render: function() {
  return (
    <div>
      {this.state.accordions}
    </div>
  );
}

Edit:

The component did trigger componentWillReceiveProps event, but it still never get trigger.

Thanks