diff --git a/wp-includes/update.php b/wp-includes/update.php
index eab29591c8378eb0cc338974504131791dd4f8cf..bf4d4d8e95f270eb44dc636f80db60872b361e24 100644
--- a/wp-includes/update.php
+++ b/wp-includes/update.php
@@ -144,11 +144,7 @@ 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,
+		'body' => $post_body,
 	);
 
 	$response = wp_remote_post( $url, $options );