diff --git a/composer.json b/composer.json
index 8cce1fc..eef25c0 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
   "homepage": "https://github.com/fcool/DigiComp.SettingValidator",
   "keywords": ["Flow","validation"],
   "require": {
-    "typo3/flow": "~2.0",
+    "typo3/flow": "~2.0|~3.0",
     "php": ">=5.3.0"
   },
   "autoload": {