diff --git a/lib/class.ISPConfig.inc.php b/lib/class.ISPConfig.inc.php
index 169a1ebd60a44f9e087d58c7a5535817f2bd7ef7..ae9901660f85f8cfc83fa484cd03ac42f9814d85 100644
--- a/lib/class.ISPConfig.inc.php
+++ b/lib/class.ISPConfig.inc.php
@@ -192,7 +192,8 @@ class ISPConfig {
 			'7.4',
 			'8.0',
 			'8.1',
-			'8.2'
+			'8.2',
+			'8.3'
 		);
 		if(isset($_GET['use-php']) && $_GET['use-php']) {
 			if ($_GET['use-php'] === 'system') {
@@ -333,7 +334,7 @@ Possible arguments are:
 	--use-nginx		->Use nginx webserver instead of apache2
 	--use-amavis	->Use amavis instead of rspamd for mail filtering
 	--use-unbound	->Use unbound instead of bind9 for local resolving. Only allowed if --no-dns is set.
-	--use-php		->Use specific PHP versions, comma separated, instead of installing multiple PHP, e.g. --use-php=7.4,8.0 (5.6, 7.0, 7.1, 7.2, 7.3, 7.4, 8.0, 8.1 and 8.2 available).
+	--use-php		->Use specific PHP versions, comma separated, instead of installing multiple PHP, e.g. --use-php=7.4,8.0 (5.6, 7.0, 7.1, 7.2, 7.3, 7.4, 8.0, 8.1, 8.2 and 8.3 available).
 					->--use-php=system disables the sury repository and just installs the system\'s default PHP version.
 					->omitting the argument (use all versions)
 	--use-ftp-ports ->This option sets the passive port range for pure-ftpd. You have to specify the port range separated by hyphen, e.g. --use-ftp-ports=40110-40210.
diff --git a/lib/os/class.ISPConfigDebianOS.inc.php b/lib/os/class.ISPConfigDebianOS.inc.php
index 309971d27cbb89ca0ccfaa9955f4b7a500590496..e478ef9dfea6cb2aaf9d82cecab523c89a4eeae0 100644
--- a/lib/os/class.ISPConfigDebianOS.inc.php
+++ b/lib/os/class.ISPConfigDebianOS.inc.php
@@ -430,7 +430,11 @@ Alias /phpmyadmin /usr/share/phpmyadmin
 			'/etc/php/8.2/cgi/php.ini',
 			'/etc/php/8.2/cli/php.ini',
 			'/etc/php/8.2/fpm/php.ini',
-			'/etc/php/8.2/apache2/php.ini'
+			'/etc/php/8.2/apache2/php.ini',
+			'/etc/php/8.3/cgi/php.ini',
+			'/etc/php/8.3/cli/php.ini',
+			'/etc/php/8.3/fpm/php.ini',
+			'/etc/php/8.3/apache2/php.ini'
 		);
 
 		$replace = array(