diff --git a/src/Table.php b/src/Table.php
index 79dc1f3..4304904 100644
--- a/src/Table.php
+++ b/src/Table.php
@@ -301,26 +301,27 @@ public function offsetGet($offset): ?Row
      * @param mixed $offset
      * @param mixed $value
      */
-    public function offsetSet($offset, $value): Row
+    public function offsetSet($offset, $value): void
     {
         //Insert on missing offset
         if ($offset === null) {
             $value['id'] = null;
 
-            return $this->create($value)->save();
+            $this->create($value)->save();
+            return;
         }
 
         //Update if the element is cached and exists
         $row = $this->getCached($offset);
 
         if ($row) {
-            return $row->edit($value)->save();
+            $row->edit($value)->save();
+            return;
         }
 
         //Update if the element it's not cached
         if (!$this->isCached($row)) {
-            $this->update()
-                ->columns($value)
+            $this->update($value)
                 ->where('id = ', $offset)
                 ->run();
         }
diff --git a/tests/TableTest.php b/tests/TableTest.php
index 947ba71..291284c 100644
--- a/tests/TableTest.php
+++ b/tests/TableTest.php
@@ -38,9 +38,10 @@ public function testArrayAccess()
 
         //Insert
         $db->post[] = ['title' => 'First post', 'isActive' => 1];
+        $db->post->insert(['title' => 'Second post', 'isActive' => 1])->run();
 
         $this->assertTrue(isset($db->post[1]));
-        $this->assertSame(1, $db->post->count());
+        $this->assertSame(2, $db->post->count());
 
         //Select
         $post = $db->post[1];
@@ -49,14 +50,16 @@ public function testArrayAccess()
 
         //Update
         $db->post[1] = ['title' => 'First post edited'];
+        $db->post[2] = ['title' => 'Second post edited'];
 
         $this->assertEquals('First post edited', $post->title);
+        $this->assertEquals('Second post edited', $db->post[2]->title);
 
         //Delete
         unset($db->post[1]);
 
         $this->assertFalse(isset($db->post[1]));
-        $this->assertCount(0, $db->post);
+        $this->assertCount(1, $db->post);
     }
 
     public function testSelectShortcuts()