diff --git a/wp-includes/class-wp-http.php b/wp-includes/class-wp-http.php
index a4a501c90a..e1244aef72 100644
--- a/wp-includes/class-wp-http.php
+++ b/wp-includes/class-wp-http.php
@@ -378,7 +378,7 @@ class WP_Http {
 		// Check for proxies.
 		$proxy = new WP_HTTP_Proxy();
 		if ( $proxy->is_enabled() && $proxy->send_through_proxy( $url ) ) {
-			$options['proxy'] = new WpOrg\Requests\Proxy\HTTP( $proxy->host() . ':' . $proxy->port() );
+			$options['proxy'] = new WpOrg\Requests\Proxy\Http( $proxy->host() . ':' . $proxy->port() );
 
 			if ( $proxy->use_authentication() ) {
 				$options['proxy']->use_authentication = true;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 01c43cbf70..4f05f2e44d 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-beta1-52314';
+$wp_version = '5.9-beta1-52315';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.