diff --git a/lib/client-assets.php b/lib/client-assets.php
index a6e04586b0157e..948d58c3eb15f6 100644
--- a/lib/client-assets.php
+++ b/lib/client-assets.php
@@ -974,7 +974,8 @@ function gutenberg_register_vendor_scripts() {
 
 	gutenberg_register_vendor_script(
 		'react',
-		'https://unpkg.com/react@16.6.3/umd/react' . $react_suffix . '.js'
+		'https://unpkg.com/react@16.6.3/umd/react' . $react_suffix . '.js',
+		array( 'wp-polyfill' )
 	);
 	gutenberg_register_vendor_script(
 		'react-dom',