diff --git a/conf/nginx-top.conf b/conf/nginx-top.conf
index c3f4c0d6..6e01e3d5 100644
--- a/conf/nginx-top.conf
+++ b/conf/nginx-top.conf
@@ -7,6 +7,6 @@
 ##       your own --- please do not ask for help from us.
 
 upstream php-fpm {
-	server unix:/var/run/php/php8.0-fpm.sock;
+	server unix:/var/run/php/php8.1-fpm.sock;
 }
 
diff --git a/management/backup.py b/management/backup.py
index aae6c00b..34091601 100755
--- a/management/backup.py
+++ b/management/backup.py
@@ -296,7 +296,7 @@ def perform_backup(full_backup):
 			if quit:
 				sys.exit(code)
 
-	service_command("php8.0-fpm", "stop", quit=True)
+	service_command("php8.1-fpm", "stop", quit=True)
 	service_command("postfix", "stop", quit=True)
 	service_command("dovecot", "stop", quit=True)
 	service_command("postgrey", "stop", quit=True)
@@ -333,7 +333,7 @@ def perform_backup(full_backup):
 		service_command("postgrey", "start", quit=False)
 		service_command("dovecot", "start", quit=False)
 		service_command("postfix", "start", quit=False)
-		service_command("php8.0-fpm", "start", quit=False)
+		service_command("php8.1-fpm", "start", quit=False)
 
 	# Remove old backups. This deletes all backup data no longer needed
 	# from more than 3 days ago.
diff --git a/tools/owncloud-restore.sh b/tools/owncloud-restore.sh
index 05d57641..6b3f3e92 100755
--- a/tools/owncloud-restore.sh
+++ b/tools/owncloud-restore.sh
@@ -26,7 +26,7 @@ if [ ! -f "$1/config.php" ]; then
 fi
 
 echo "Restoring backup from $1"
-service php8.0-fpm stop
+service php8.1-fpm stop
 
 # remove the current ownCloud/Nextcloud installation
 rm -rf /usr/local/lib/owncloud/
@@ -45,5 +45,5 @@ chown www-data:www-data "$STORAGE_ROOT/owncloud/config.php"
 
 sudo -u www-data "php$PHP_VER" /usr/local/lib/owncloud/occ maintenance:mode --off
 
-service php8.0-fpm start
+service php8.1-fpm start
 echo "Done"