diff --git a/core/lib/Drupal.php b/core/lib/Drupal.php
index 4ffa6c6f0b0b0da38c82cf9aa3f3b90d6d213a83..5e67fbc33ab84f858741081996f16a5e378a66a0 100644
--- a/core/lib/Drupal.php
+++ b/core/lib/Drupal.php
@@ -132,7 +132,7 @@ class Drupal {
    * message, but Drupal can still be installed. Used for (e.g.) PHP versions
    * that have reached their EOL or will in the near future.
    */
-  const RECOMMENDED_PHP = '7.4';
+  const RECOMMENDED_PHP = '8.0';
 
   /**
    * The currently active container object, or NULL if not initialized yet.