diff --git a/composer.json b/composer.json
index d15abcc..1b340cc 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
     "keywords": [ "propel", "behavior", "event dispatcher", "event" ],
     "license": "MIT",
     "require": {
-        "symfony/event-dispatcher": "^5.3"
+        "symfony/event-dispatcher": "^5.3|^6.0"
     },
     "extra": {
         "name": "event_dispatcher",