diff --git a/src/Transformers/ApiTransformer.php b/src/Transformers/ApiTransformer.php
index 0be5202..b90e8b9 100644
--- a/src/Transformers/ApiTransformer.php
+++ b/src/Transformers/ApiTransformer.php
@@ -74,7 +74,7 @@ public function transformOutput($data): array
         if (true === $data instanceof Collection) {
             $output = $this->transformCollection($output, $data);
         } else if (true === $data instanceof Model) {
-            $output = $this->transformAttributes($output, $data->getAttributes());
+            $output = $this->transformAttributes($output, $data->attributesToArray());
             $output = $this->transformRelationships($output, $data);
         } else {
             $data = (true === \is_array($data)) ? $data : $data->toArray();
diff --git a/tests/ApiTransformerTest.php b/tests/ApiTransformerTest.php
index 4c49fde..b61df76 100644
--- a/tests/ApiTransformerTest.php
+++ b/tests/ApiTransformerTest.php
@@ -3,7 +3,9 @@
 namespace Napp\Core\Api\Tests\Unit;
 
 use Napp\Core\Api\Tests\Models\Category;
+use Napp\Core\Api\Tests\Models\Post;
 use Napp\Core\Api\Tests\Models\Product;
+use Napp\Core\Api\Tests\Transformers\PostTransformer;
 use Napp\Core\Api\Tests\Transformers\ProductTransformer;
 use Napp\Core\Api\Transformers\ApiTransformer;
 use Napp\Core\Api\Tests\TestCase;
@@ -42,7 +44,7 @@ public function test_input_transforming()
             'price' => '1000'
         ];
 
-        $expectedInput = [
+        $expected = [
             'id' => 1,
             'name' => 'Wayne Industries',
             'has_access' => 0,
@@ -52,7 +54,7 @@ public function test_input_transforming()
         ];
         $transformedInput = $this->transformer->transformInput($input);
 
-        $this->assertEquals($expectedInput, $transformedInput);
+        $this->assertEquals($expected, $transformedInput);
     }
 
     public function test_strict_output_transforming()
@@ -181,7 +183,7 @@ public function test_output_transforming_with_collection_strict_mode()
     public function test_the_datatype_is_nullable()
     {
         $this->transformer->setApiMapping([
-            'price' => ['newName' => 'price', 'dataType' => 'nullable|int']
+            'price' => ['newName' => 'price_new', 'dataType' => 'nullable|int']
         ]);
 
         $input = [
@@ -189,7 +191,7 @@ public function test_the_datatype_is_nullable()
         ];
 
         $expectedOutput = [
-            'price' => 100
+            'price_new' => 100
         ];
 
         $this->assertSame($expectedOutput, $this->transformer->transformOutput($input));
@@ -199,7 +201,7 @@ public function test_the_datatype_is_nullable()
         ];
 
         $expectedOutput = [
-            'price' => 0
+            'price_new' => 0
         ];
 
         $this->assertSame($expectedOutput, $this->transformer->transformOutput($input));
@@ -296,4 +298,21 @@ public function test_transform_deeply_nested_relationships()
 
         $this->assertEquals('iPhone 8', $result['products'][0]['variants'][0]['title']);
     }
+    
+    public function test_transform_not_strict_model()
+    {
+        $post = Post::create([
+            'title' => 'My First post',
+            'desc' => 'body text',
+            'tags' => [2, '222', 'wow'],
+            'other_tags' => null,
+            'owner' => 34,
+            'uuid' => '66220588-c944-3425-a3ea-0fc80f8c32fe'
+        ]);
+        $result = app(PostTransformer::class)->transformOutput($post);
+
+        $this->assertArrayNotHasKey('updated_at', $result);
+        $this->assertEquals(3, count($result['tags']));
+        $this->assertNull($result['otherTags']);
+    }
 }
diff --git a/tests/Models/Post.php b/tests/Models/Post.php
new file mode 100644
index 0000000..0454226
--- /dev/null
+++ b/tests/Models/Post.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace Napp\Core\Api\Tests\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Post extends Model
+{
+
+    protected $guarded = [
+        'uuid'
+    ];
+
+    /**
+     * @var array
+     */
+    public $dates = [
+        'created_at',
+    ];
+
+    /**
+     * @var array
+     */
+    public $casts = [
+        'tags' => 'json'
+    ];
+
+    /**
+     * @var array
+     */
+    public $hidden = [
+        'updated_at',
+    ];
+
+    /**
+     * @var array
+     */
+    public $apiMapping = [
+        'id'         => ['newName' => 'id',         'dataType' => 'int'],
+        'title'      => ['newName' => 'name',       'dataType' => 'string'],
+        'desc'       => ['newName' => 'desc',       'dataType' => 'string'],
+        'tags'       => ['newName' => 'tags',       'dataType' => 'array'],
+        'other_tags' => ['newName' => 'otherTags',  'dataType' => 'nullable[array'],
+        'owner'      => ['newName' => 'owner_id',   'dataType' => 'nullable[int'],
+        'created_at' => ['newName' => 'postedAt',   'dataType' => 'datetime'],
+    ];
+
+
+}
diff --git a/tests/TestCase.php b/tests/TestCase.php
index d1643c0..a87af57 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -114,6 +114,20 @@ public function migrateTables()
                 $table->timestamps();
             });
         }
+
+        if ( ! Schema::hasTable('posts')) {
+            Schema::create('posts', function (Blueprint $table) {
+                $table->increments('id');
+                $table->string('title');
+                $table->text('desc');
+                $table->json('tags');
+                $table->text('other_tags')->nullable();
+                $table->integer('owner')->nullable();
+                $table->uuid('uuid')->nullable();
+                $table->timestamps();
+            });
+
+        }
     }
 
     /**
diff --git a/tests/Transformers/PostTransformer.php b/tests/Transformers/PostTransformer.php
new file mode 100644
index 0000000..f8dbdc2
--- /dev/null
+++ b/tests/Transformers/PostTransformer.php
@@ -0,0 +1,22 @@
+<?php 
+
+namespace Napp\Core\Api\Tests\Transformers;
+
+use Napp\Core\Api\Tests\Models\Post;
+use Napp\Core\Api\Transformers\ApiTransformer;
+
+/**
+ * Class PostTransformer
+ * @package Napp\Core\Api\Tests\Transformers
+ */
+class PostTransformer extends ApiTransformer
+{
+    protected $strict = false;
+    /**
+     * @param Post $post
+     */
+    public function __construct(Post $post)
+    {
+        $this->setApiMapping($post);
+    }
+}
\ No newline at end of file