diff --git a/composer.json b/composer.json
index afc5b36..2c7107c 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
 
     "require": {
         "php": "^7.1",
-        "symfony/framework-bundle": "^5.0",
+        "symfony/framework-bundle": "^5.0|^4.0",
         "acelaya/doctrine-enum-type": "^2.3"
     },