diff --git a/src/wp-includes/script-loader.php b/src/wp-includes/script-loader.php
index 14027aa52a88f..f4e37d7164139 100644
--- a/src/wp-includes/script-loader.php
+++ b/src/wp-includes/script-loader.php
@@ -106,8 +106,8 @@ function wp_default_packages_vendor( $scripts ) {
 	);
 
 	$vendor_scripts_versions = array(
-		'react'                       => '18.3.1-umd',
-		'react-dom'                   => '18.3.1-umd',
+		'react'                       => '18.3.1.1', // Final .1 due to switch to UMD build, can be removed in the next update.
+		'react-dom'                   => '18.3.1.1', // Final .1 due to switch to UMD build, can be removed in the next update.
 		'react-jsx-runtime'           => '18.3.1',
 		'regenerator-runtime'         => '0.14.1',
 		'moment'                      => '2.30.1',
diff --git a/tests/phpunit/tests/dependencies/scripts.php b/tests/phpunit/tests/dependencies/scripts.php
index 03dba5df69744..89bfb4ef922e6 100644
--- a/tests/phpunit/tests/dependencies/scripts.php
+++ b/tests/phpunit/tests/dependencies/scripts.php
@@ -3413,6 +3413,21 @@ public function test_vendor_script_versions_registered_manually( $script, $handl
 			$handle = $script;
 		}
 
+		/*
+		 * Append '.1' to the version number for React and ReactDOM.
+		 *
+		 * This is due to a change in the build to use the UMD version of the
+		 * scripts, requiring a different version number in order to break the
+		 * caches of some CDNs.
+		 *
+		 * This can be removed in the next update to the packages.
+		 *
+		 * See https://core.trac.wordpress.org/ticket/62422
+		 */
+		if ( in_array( $handle, array( 'react', 'react-dom' ), true ) ) {
+			$package_json[ $script ] .= '.1';
+		}
+
 		$script_query = $wp_scripts->query( $handle, 'registered' );
 
 		$this->assertNotFalse( $script_query, "The script '{$handle}' should be registered." );