diff --git a/composer.json b/composer.json
index b9b009f..5474da2 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
 	],
 	"require": {
 		"php": "^7.2||^8.0",
-		"doctrine/collections": "~1.6"
+		"doctrine/collections": "~1.6||^2.0"
 	},
 	"require-dev": {
 		"phpunit/phpunit": "^8.5.16",