diff --git a/wp-includes/version.php b/wp-includes/version.php
index 455bd2b64a..d3c9490f99 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-beta4-48678';
+$wp_version = '5.5-rc1';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.