diff --git a/src/Bundle/ChillCalendarBundle/Service/ShortMessageNotification/DefaultRangeGenerator.php b/src/Bundle/ChillCalendarBundle/Service/ShortMessageNotification/DefaultRangeGenerator.php
index b79118cf0..11e43139c 100644
--- a/src/Bundle/ChillCalendarBundle/Service/ShortMessageNotification/DefaultRangeGenerator.php
+++ b/src/Bundle/ChillCalendarBundle/Service/ShortMessageNotification/DefaultRangeGenerator.php
@@ -18,8 +18,6 @@ declare(strict_types=1);
 
 namespace Chill\CalendarBundle\Service\ShortMessageNotification;
 
-use Monolog\DateTimeImmutable;
-
 /**
  * * Lundi => Envoi des rdv du mardi et mercredi.
  * * Mardi => Envoi des rdv du jeudi.
@@ -31,7 +29,7 @@ class DefaultRangeGenerator implements RangeGeneratorInterface
 {
     public function generateRange(\DateTimeImmutable $date): ?array
     {
-        $onMidnight = DateTimeImmutable::createFromFormat('Y-m-d H:i:s', $date->format('Y-m-d').' 00:00:00');
+        $onMidnight = \DateTimeImmutable::createFromFormat('Y-m-d H:i:s', $date->format('Y-m-d').' 00:00:00');
 
         switch ($dow = (int) $onMidnight->format('w')) {
             case 6: // Saturday