diff --git a/.github/workflows/tests-e2e.yml b/.github/workflows/tests-e2e.yml
index 91c42507fafb..f3321afe9dd8 100644
--- a/.github/workflows/tests-e2e.yml
+++ b/.github/workflows/tests-e2e.yml
@@ -132,7 +132,7 @@ jobs:
       matrix:
         # TODO: add back Firefox once support is more mature.
         browser: ['chrome']
-        wp: ['6.2']
+        wp: ['6.3']
         snapshots: [false]
         experimental: [false]
         # We want to split up the tests into 2 parts running in parallel.
diff --git a/.github/workflows/tests-unit-php.yml b/.github/workflows/tests-unit-php.yml
index b549085e72cf..6693ad99532e 100644
--- a/.github/workflows/tests-unit-php.yml
+++ b/.github/workflows/tests-unit-php.yml
@@ -66,7 +66,7 @@ jobs:
             experimental: false
 
           - php: '7.4'
-            wp: '6.2'
+            wp: '6.3'
             experimental: false
 
           - php: '8.2'
diff --git a/phpcs.xml.dist b/phpcs.xml.dist
index 795cd7bdebaa..b77e349ce919 100644
--- a/phpcs.xml.dist
+++ b/phpcs.xml.dist
@@ -1,6 +1,6 @@
 <?xml version="1.0" ?>
 <ruleset name="Web Stories PHP Coding Standards Rules">
-  <config name="minimum_supported_wp_version" value="6.2" />
+  <config name="minimum_supported_wp_version" value="6.3" />
 
   <rule ref="WordPress-Core">
     <type>error</type>
diff --git a/readme.txt b/readme.txt
index 093b71f00837..4cf72bc20beb 100644
--- a/readme.txt
+++ b/readme.txt
@@ -2,7 +2,7 @@
 
 Contributors:      google
 Tested up to:      6.5
-Requires at least: 6.2
+Requires at least: 6.3
 Stable tag:        V.V.V
 License:           Apache-2.0
 License URI:       https://www.apache.org/licenses/LICENSE-2.0
diff --git a/tests/phpstan/bootstrap.php b/tests/phpstan/bootstrap.php
index 6dac5564a63c..f3d752fc0480 100644
--- a/tests/phpstan/bootstrap.php
+++ b/tests/phpstan/bootstrap.php
@@ -10,8 +10,8 @@
 define( 'WEBSTORIES_PLUGIN_DIR_PATH', dirname( WEBSTORIES_PLUGIN_FILE ) );
 define( 'WEBSTORIES_PLUGIN_DIR_URL', 'https://example.com/wp-content/plugins/web-stories/' );
 define( 'WEBSTORIES_CDN_URL', 'https://wp.stories.google/static/main/' );
-define( 'WEBSTORIES_MINIMUM_PHP_VERSION', '7.4' );
-define( 'WEBSTORIES_MINIMUM_WP_VERSION', '6.2' );
+define( 'WEBSTORIES_MINIMUM_PHP_VERSION', '0.0' );
+define( 'WEBSTORIES_MINIMUM_WP_VERSION', '0.0' );
 define( 'WEBSTORIES_DEV_MODE', true );
 
 define( 'WPCOM_IS_VIP_ENV', true );
diff --git a/web-stories.php b/web-stories.php
index 162f1d099237..21e2bc13b105 100644
--- a/web-stories.php
+++ b/web-stories.php
@@ -10,7 +10,7 @@
  * Author: Google
  * Author URI: https://opensource.google.com/
  * Version: 1.36.0-alpha.0
- * Requires at least: 6.2
+ * Requires at least: 6.3
  * Requires PHP: 7.4
  * Text Domain: web-stories
  * License: Apache License 2.0
@@ -47,7 +47,7 @@
 define( 'WEBSTORIES_PLUGIN_DIR_PATH', plugin_dir_path( WEBSTORIES_PLUGIN_FILE ) );
 define( 'WEBSTORIES_PLUGIN_DIR_URL', plugin_dir_url( WEBSTORIES_PLUGIN_FILE ) );
 define( 'WEBSTORIES_MINIMUM_PHP_VERSION', '7.4' );
-define( 'WEBSTORIES_MINIMUM_WP_VERSION', '6.2' );
+define( 'WEBSTORIES_MINIMUM_WP_VERSION', '6.3' );
 define( 'WEBSTORIES_CDN_URL', 'https://wp.stories.google/static/main' );
 
 if ( ! defined( 'WEBSTORIES_DEV_MODE' ) ) {