diff --git a/src/Bundle/ChillTaskBundle/DependencyInjection/ChillTaskExtension.php b/src/Bundle/ChillTaskBundle/DependencyInjection/ChillTaskExtension.php
index 1f30615b7..70faa5ee3 100644
--- a/src/Bundle/ChillTaskBundle/DependencyInjection/ChillTaskExtension.php
+++ b/src/Bundle/ChillTaskBundle/DependencyInjection/ChillTaskExtension.php
@@ -83,7 +83,7 @@ class ChillTaskExtension extends Extension implements PrependExtensionInterface
                         'type' => 'method',
                         'property' => 'currentStates',
                     ],
-                    'type' => 'state_machine',
+                    'type' =>  'workflow',
                     'support_strategy' => TaskWorkflowManager::class,
                     'places' => ['new', 'in_progress', 'closed', 'canceled'],
                     'initial_marking' => ['new'],
diff --git a/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php b/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php
index 0269f4195..d934bd99d 100644
--- a/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php
+++ b/src/Bundle/ChillTaskBundle/Entity/AbstractTask.php
@@ -62,12 +62,10 @@ abstract class AbstractTask implements HasCenterInterface, HasScopeInterface
     private ?\Chill\PersonBundle\Entity\AccompanyingPeriod $course = null;
 
     /**
-     * @var json
-     *
-     * @ORM\Column(name="current_states", type="json")
+     * @ORM\Column(name="current_states", type="json", options={"jsonb"=true, "default"="[]"})
      * @Serializer\Groups({"read"})
      */
-    private $currentStates = [];
+    private array $currentStates = [];
 
     /**
      *