diff --git a/composer.json b/composer.json
index 40f0ed4..29f1cb5 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
 	"require": {
 		"php": "~7.2",
 		"jms/serializer": "~2.0|~3.0",
-		"ramsey/uuid": "~3.0"
+		"ramsey/uuid": "~3.0|~4.0"
 	},
 	"require-dev": {
 		"consistence/coding-standard": "3.5",