React Router V4 Redirect after form submission

ContactForm.jsx

import React, { Component } from 'react'
import { withRouter } from 'react-router-dom'

class ContactForm extends Component {
  submitForm = (e) => {
    e.preventDefault()
    this.props.history.push('/thank-you')
  }

  render() {
    return (
      <div>
        <form onSubmit={this.submitForm}>
          <button type="submit">Submit</button>
        </form>
      </div>
    )
  }
}

export default withRouter(ContactForm)