diff --git a/src/react-mailto.js b/src/react-mailto.js
index e5b5fb6..27b4b95 100644
--- a/src/react-mailto.js
+++ b/src/react-mailto.js
@@ -1,4 +1,5 @@
-import React, { Component, PropTypes } from 'react';
+import React, { Component } from 'react';
+import PropTypes from 'prop-types';
 
 export const toSearchString = (searchParams = {}) => {
   return Object.keys(searchParams).map(key =>