diff --git a/composer.json b/composer.json
index ccd817150..a46446531 100644
--- a/composer.json
+++ b/composer.json
@@ -35,7 +35,7 @@
         "symfony/mime": "^4.4",
         "symfony/monolog-bundle": "^3.5",
         "symfony/security-bundle": "^4.4",
-        "symfony/serializer": "^4.4",
+        "symfony/serializer": "^5.3",
         "symfony/swiftmailer-bundle": "^3.5",
         "symfony/templating": "^4.4",
         "symfony/translation": "^4.4",