diff --git a/composer.json b/composer.json
index feaa3c8..f1466ef 100644
--- a/composer.json
+++ b/composer.json
@@ -16,7 +16,7 @@
     "eonx-com/utils": "^1.0",
     "phpdocumentor/reflection-docblock": "^4.3",
     "symfony/property-info": "^4.3",
-    "symfony/serializer": "^4.3"
+    "symfony/serializer": "^4.3 || ^5.0"
   },
   "require-dev": {
     "eonx-com/standards": "^0.2",