diff --git a/setup/setuputils.class.inc.php b/setup/setuputils.class.inc.php
index b6ccc2d40..4b6146edb 100644
--- a/setup/setuputils.class.inc.php
+++ b/setup/setuputils.class.inc.php
@@ -99,7 +99,7 @@ class SetupUtils
 	const MYSQL_NOT_VALIDATED_VERSION = ''; // MySQL 8 is now OK (N°2010 in 2.7.0) but has no query cache so mind the perf on large volumes !
 
 	// -- versions that will be the minimum in next iTop major release (warning if not met)
-	const PHP_NEXT_MIN_VERSION = ''; //
+	const PHP_NEXT_MIN_VERSION = '7.4.0'; // Allow us to use more modern libs / code; will be default PHP version on main Linux distrib LTS
 	const MYSQL_NEXT_MIN_VERSION = ''; // no new MySQL requirement for next iTop version
 	// -- First recent version that is not yet validated by Combodo (warning)
 	const PHP_NOT_VALIDATED_VERSION = '8.0.0';