diff --git a/core/includes/bootstrap.inc b/core/includes/bootstrap.inc
index 73b947f13e..d2a0313a49 100644
--- a/core/includes/bootstrap.inc
+++ b/core/includes/bootstrap.inc
@@ -60,7 +60,7 @@
  * @todo Move this to an appropriate autoloadable class. See
  *   https://www.drupal.org/project/drupal/issues/2908079
  */
-const DRUPAL_RECOMMENDED_PHP = '7.2';
+const DRUPAL_RECOMMENDED_PHP = '7.3';
 
 /**
  * Minimum recommended value of PHP memory_limit.