diff --git a/src/Models/Ticket.php b/src/Models/Ticket.php
index 333373c..a1908d7 100644
--- a/src/Models/Ticket.php
+++ b/src/Models/Ticket.php
@@ -9,7 +9,6 @@
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Database\Eloquent\Relations\HasMany;
-use Illuminate\Foundation\Auth\User;
 
 /**
  * Coderflex\LaravelTicket\Models\Ticket
@@ -45,7 +44,7 @@ class Ticket extends Model
      */
     public function user(): BelongsTo
     {
-        return $this->belongsTo(User::class);
+        return $this->belongsTo(config('auth.providers.users.model'));
     }
 
     /**
@@ -55,7 +54,7 @@ public function user(): BelongsTo
      */
     public function assignedToUser(): BelongsTo
     {
-        return $this->belongsTo(User::class, 'assigned_to');
+        return $this->belongsTo(config('auth.providers.users.model'), 'assigned_to');
     }
 
     /**