diff --git a/wp-includes/update.php b/wp-includes/update.php
index 5ae9f613bf222c5db0f6148c87c0bf99449d542c..702256198bb10d9fa080fbcc92dd129e3cba4179 100644
--- a/wp-includes/update.php
+++ b/wp-includes/update.php
@@ -137,10 +137,6 @@ function wp_version_check( $extra_stats = array(), $force_check = false ) {
 	$options = array(
         'timeout' => $doing_cron ? 30 : 3,
 		'user-agent' => 'WordPress/' . $wp_version . ';  http://wordpress.org',
-		'headers' => array(
-			'wp_install' => home_url( '/' ),
-			'wp_blog' => home_url( '/' )
-		),
 		'body' => $post_body,
 	);