diff --git a/src/SimpleDTO.php b/src/SimpleDTO.php
index 28ec099..4f39567 100644
--- a/src/SimpleDTO.php
+++ b/src/SimpleDTO.php
@@ -13,6 +13,7 @@
 use Illuminate\Http\UploadedFile;
 use Illuminate\Support\Collection;
 use Illuminate\Validation\ValidationException;
+use JsonSerializable;
 use ReflectionClass;
 use ReflectionProperty;
 use UnitEnum;
@@ -29,7 +30,7 @@
 use WendellAdriel\ValidatedDTO\Exceptions\CastTargetException;
 use WendellAdriel\ValidatedDTO\Exceptions\MissingCastTypeException;
 
-abstract class SimpleDTO implements BaseDTO, CastsAttributes
+abstract class SimpleDTO implements BaseDTO, CastsAttributes, JsonSerializable
 {
     use DataResolver, DataTransformer;
 
@@ -146,6 +147,14 @@ public function set($model, $key, $value, $attributes)
         return '';
     }
 
+    /*
+     * JsonSerializable
+     */
+    public function jsonSerialize(): mixed
+    {
+        return $this->toArray();
+    }
+
     /**
      * Maps the DTO properties before the DTO instantiation.
      */