Mudando a cor de um botão com react

Front-end
#1

Boa noite,

Tenho vários botões e estou tentando mudar a cor ao clicar num botão, mas acaba que muda a cor de todos.

    import React, { Component } from 'react'

class Lotofacil extends Component {
    constructor(props) {
        super(props)
        this.state = {
            black01: false,
            black02: false,
            black03: false,
            black04: false,
            black05: false
        }
        this.changeColor = this.changeColor.bind(this)
    }

    changeColor(e) {
        console.log("Chamou", e.target.value)
        this.setState({
            black01: !this.state.black01,
            black02: !this.state.black02,
            black03: !this.state.black03,
            black04: !this.state.black04,
            black05: !this.state.black05
        })
        e.preventDefault()
    }

    render() {
        let btn_class01 = this.state.black01 ? "blackButton" : "whiteButton"
        let btn_class02 = this.state.black02 ? "blackButton" : "whiteButton"
        let btn_class03 = this.state.black03 ? "blackButton" : "whiteButton"
        let btn_class04 = this.state.black04 ? "blackButton" : "whiteButton"
        let btn_class05 = this.state.black05 ? "blackButton" : "whiteButton"
        return (
            <div className="container">
                <div>
                    <button type="button" value="1" onClick={this.changeColor.bind(this)} className={btn_class01} >01</button>
                    <button type="button" value="2" onClick={this.changeColor.bind(this)} className={btn_class02} >02</button>
                    <button type="button" value="3" onClick={this.changeColor.bind(this)} className={btn_class03} >03</button>
                    <button type="button" value="4" onClick={this.changeColor.bind(this)} className={btn_class04} >04</button>
                    <button type="button" value="5" onClick={this.changeColor.bind(this)} className={btn_class05} >05</button>
                </div>
            </div>
        )
    }
}

export default Lotofacil

    button{
  width: 80px;
  height: 40px;
  margin: 15px;
}
.blackButton{
  background-color: black;
  color: white;
}

.whiteButton{
  background-color: white;
  color: black;
}