diff --git a/composer.json b/composer.json
index c276970..9a4448f 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,7 @@
 		"typo3/cms-extbase": "^12.4",
 		"typo3/cms-fluid": "^12.4",
 		"typo3/cms-frontend": "^12.4",
-		"typo3fluid/fluid": "^2.9",
+		"typo3fluid/fluid": "^2.9 || ^4.0",
 		"zordius/lightncandy": "^1.2"
 	},
 	"require-dev": {