diff --git a/src/Jenssegers/Mongodb/Query/Builder.php b/src/Jenssegers/Mongodb/Query/Builder.php
index a340976e3..8180c7c83 100644
--- a/src/Jenssegers/Mongodb/Query/Builder.php
+++ b/src/Jenssegers/Mongodb/Query/Builder.php
@@ -1133,6 +1133,23 @@ protected function compileWhereRaw(array $where)
         return $where['sql'];
     }
 
+    /**
+     * @inheritdoc
+     */
+    protected function addUpdatedAtColumn(array $values)
+    {
+        if (! $this->model->usesTimestamps()) {
+            return $values;
+        }
+
+        $column = $this->qualifyColumn($this->model->getUpdatedAtColumn());
+
+        return array_merge(
+            [$column => $this->model->freshTimestampString()],
+            $values
+        );
+    }
+
     /**
      * Set custom options for the query.
      *
diff --git a/tests/AuthTest.php b/tests/AuthTest.php
index 2b671fdd5..dad34e7a4 100644
--- a/tests/AuthTest.php
+++ b/tests/AuthTest.php
@@ -5,7 +5,7 @@
 
 class AuthTest extends TestCase
 {
-    public function tearDown()
+    public function tearDown(): void
     {
         User::truncate();
         DB::collection('password_reminders')->truncate();
diff --git a/tests/EmbeddedRelationsTest.php b/tests/EmbeddedRelationsTest.php
index 5caae5b28..18e01557b 100644
--- a/tests/EmbeddedRelationsTest.php
+++ b/tests/EmbeddedRelationsTest.php
@@ -2,7 +2,7 @@
 
 class EmbeddedRelationsTest extends TestCase
 {
-    public function tearDown()
+    public function tearDown(): void
     {
         Mockery::close();
 
diff --git a/tests/GeospatialTest.php b/tests/GeospatialTest.php
index 2d646b337..b13ed46af 100644
--- a/tests/GeospatialTest.php
+++ b/tests/GeospatialTest.php
@@ -2,7 +2,7 @@
 
 class GeospatialTest extends TestCase
 {
-    public function setUp()
+    public function setUp(): void
     {
         parent::setUp();
 
@@ -43,7 +43,7 @@ public function setUp()
         ]);
     }
 
-    public function tearDown()
+    public function tearDown(): void
     {
         Schema::drop('locations');
     }
diff --git a/tests/HybridRelationsTest.php b/tests/HybridRelationsTest.php
index 2223950ec..ade509067 100644
--- a/tests/HybridRelationsTest.php
+++ b/tests/HybridRelationsTest.php
@@ -2,7 +2,7 @@
 
 class HybridRelationsTest extends TestCase
 {
-    public function setUp()
+    public function setUp(): void
     {
         parent::setUp();
 
@@ -11,7 +11,7 @@ public function setUp()
         MysqlRole::executeSchema();
     }
 
-    public function tearDown()
+    public function tearDown(): void
     {
         MysqlUser::truncate();
         MysqlBook::truncate();
diff --git a/tests/ModelTest.php b/tests/ModelTest.php
index 4387d1231..906a39e68 100644
--- a/tests/ModelTest.php
+++ b/tests/ModelTest.php
@@ -8,7 +8,7 @@
 
 class ModelTest extends TestCase
 {
-    public function tearDown()
+    public function tearDown(): void
     {
         User::truncate();
         Soft::truncate();
@@ -548,4 +548,13 @@ public function testChunkById()
 
         $this->assertEquals(3, $count);
     }
+
+    public function testUpdateWithUpdatedAt()
+    {
+        $item = Item::create(['name' => 'sword']);
+        $item->update($item->toArray());
+
+        $this->assertNull($item->items);
+        $this->assertNull(optional($item->items)->updated_at);
+    }
 }
diff --git a/tests/QueryBuilderTest.php b/tests/QueryBuilderTest.php
index ac1479d26..0807b4ece 100644
--- a/tests/QueryBuilderTest.php
+++ b/tests/QueryBuilderTest.php
@@ -5,7 +5,7 @@
 
 class QueryBuilderTest extends TestCase
 {
-    public function tearDown()
+    public function tearDown(): void
     {
         DB::collection('users')->truncate();
         DB::collection('items')->truncate();
diff --git a/tests/QueryTest.php b/tests/QueryTest.php
index 2011305c2..de8589ebd 100644
--- a/tests/QueryTest.php
+++ b/tests/QueryTest.php
@@ -4,7 +4,7 @@ class QueryTest extends TestCase
 {
     protected static $started = false;
 
-    public function setUp()
+    public function setUp(): void
     {
         parent::setUp();
         User::create(['name' => 'John Doe', 'age' => 35, 'title' => 'admin']);
@@ -18,7 +18,7 @@ public function setUp()
         User::create(['name' => 'Error', 'age' => null, 'title' => null]);
     }
 
-    public function tearDown()
+    public function tearDown(): void
     {
         User::truncate();
         parent::tearDown();
diff --git a/tests/QueueTest.php b/tests/QueueTest.php
index 35be33f9a..f3ebc94f6 100644
--- a/tests/QueueTest.php
+++ b/tests/QueueTest.php
@@ -2,7 +2,7 @@
 
 class QueueTest extends TestCase
 {
-    public function setUp()
+    public function setUp(): void
     {
         parent::setUp();
 
diff --git a/tests/RelationsTest.php b/tests/RelationsTest.php
index 1e2aaa491..de3e0f222 100644
--- a/tests/RelationsTest.php
+++ b/tests/RelationsTest.php
@@ -2,7 +2,7 @@
 
 class RelationsTest extends TestCase
 {
-    public function tearDown()
+    public function tearDown(): void
     {
         Mockery::close();
 
diff --git a/tests/SchemaTest.php b/tests/SchemaTest.php
index a04715d9d..5d63e28eb 100644
--- a/tests/SchemaTest.php
+++ b/tests/SchemaTest.php
@@ -2,7 +2,7 @@
 
 class SchemaTest extends TestCase
 {
-    public function tearDown()
+    public function tearDown(): void
     {
         Schema::drop('newcollection');
     }
diff --git a/tests/SeederTest.php b/tests/SeederTest.php
index 9581df3d3..61143e330 100644
--- a/tests/SeederTest.php
+++ b/tests/SeederTest.php
@@ -2,7 +2,7 @@
 
 class SeederTest extends TestCase
 {
-    public function tearDown()
+    public function tearDown(): void
     {
         User::truncate();
     }
diff --git a/tests/ValidationTest.php b/tests/ValidationTest.php
index 16e31f4cf..267996420 100644
--- a/tests/ValidationTest.php
+++ b/tests/ValidationTest.php
@@ -2,7 +2,7 @@
 
 class ValidationTest extends TestCase
 {
-    public function tearDown()
+    public function tearDown(): void
     {
         User::truncate();
     }