diff --git a/package-lock.json b/package-lock.json
index 6c38d33784..90576ade02 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
 	"name": "WordPress",
-	"version": "5.5.2",
+	"version": "5.5.3",
 	"lockfileVersion": 1,
 	"requires": true,
 	"dependencies": {
diff --git a/package.json b/package.json
index 15d5d7871a..9f6469a181 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "WordPress",
-	"version": "5.5.2",
+	"version": "5.5.3",
 	"description": "WordPress is open source software you can use to create a beautiful website, blog, or app.",
 	"repository": {
 		"type": "svn",
diff --git a/src/wp-includes/version.php b/src/wp-includes/version.php
index f9e563db30..8a9d11dba3 100644
--- a/src/wp-includes/version.php
+++ b/src/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5.2-src';
+$wp_version = '5.5.3-alpha-49449-src';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.