diff --git a/src/Dto/SeasonDto.php b/src/Dto/SeasonDto.php
index c77482fb..0b9ece23 100644
--- a/src/Dto/SeasonDto.php
+++ b/src/Dto/SeasonDto.php
@@ -39,7 +39,7 @@ class SeasonDto
             'seasonNumber' => $this->seasonNumber ?? null,
             'numberOfTeams' => $numberOfTeams,
             'gamesPerWeek' => $this->gamesPerWeek ?? null,
-            'dateStart' => !empty($this->dateStart) ? $this->dateStart->format('Y-m'): null,
+            'dateStart' => !empty($this->dateStart) ? $this->dateStart->format('Y-m-d'): null,
             'leagueId' => $this->leagueId ?? null,
             'leagueName' => $this->leagueName ?? null,
             'pointsPerWin' => $this->pointsPerWin ?? null,
@@ -57,7 +57,7 @@ class SeasonDto
         }
         if (!empty($dataList['dateStart']))
         {
-            $dateStart = \DateTime::createFromFormat('Y-m', $dataList['dateStart']);
+            $dateStart = \DateTime::createFromFormat('Y-m-d', $dataList['dateStart']);
              if ($dateStart)
              {
                  $this->dateStart = $dateStart;