diff --git a/src/Symfony/Bundle/FrameworkBundle/composer.json b/src/Symfony/Bundle/FrameworkBundle/composer.json
index 5fbd6e5ac53c..1272f8d07c26 100644
--- a/src/Symfony/Bundle/FrameworkBundle/composer.json
+++ b/src/Symfony/Bundle/FrameworkBundle/composer.json
@@ -67,7 +67,7 @@
         "symfony/console": "<3.4",
         "symfony/form": "<3.4",
         "symfony/property-info": "<3.4",
-        "symfony/serializer": "<3.4",
+        "symfony/serializer": "<4.1",
         "symfony/stopwatch": "<3.4",
         "symfony/translation": "<3.4",
         "symfony/validator": "<4.1",
diff --git a/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
index 644985fce727..b4e8e46dc2c8 100644
--- a/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
+++ b/src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
@@ -214,7 +214,7 @@ abstract protected function extractAttributes($object, $format = null, array $co
     abstract protected function getAttributeValue($object, $attribute, $format = null, array $context = array());
 
     /**
-     * Sets an handler function that will be called when the max depth is reached.
+     * Sets a handler function that will be called when the max depth is reached.
      */
     public function setMaxDepthHandler(?callable $handler): void
     {