diff --git a/lib/core/SnackPlayer.js b/lib/core/SnackPlayer.js
index 7e287a3e80..853976f52f 100644
--- a/lib/core/SnackPlayer.js
+++ b/lib/core/SnackPlayer.js
@@ -11,7 +11,7 @@
 'use strict';
 
 var Prism = require('./Prism');
-var React = require('React');
+var React = require('react');
 
 const PropTypes = require('prop-types');
 
@@ -137,4 +137,4 @@ SnackPlayer.contextTypes = {
   version: PropTypes.number.isRequired,
 };
 
-module.exports = SnackPlayer;
\ No newline at end of file
+module.exports = SnackPlayer;
diff --git a/lib/core/WebPlayer.js b/lib/core/WebPlayer.js
index 5bb8305d89..3bd16ea5bd 100644
--- a/lib/core/WebPlayer.js
+++ b/lib/core/WebPlayer.js
@@ -11,7 +11,7 @@
 'use strict';
 
 var Prism = require('./Prism');
-var React = require('React');
+var React = require('react');
 
 var WEB_PLAYER_VERSION = '1.10.0';