diff --git a/composer.json b/composer.json
index 00f6be5..311b16f 100644
--- a/composer.json
+++ b/composer.json
@@ -5,7 +5,7 @@
     "license": "MIT",
     "require": {
         "neos/content-repository": "~3.0 || dev-master",
-        "neos/flow": "~4.0 || dev-master",
+        "neos/flow": "~4.0 || ~5.0 || dev-master",
         "flowpack/simplesearch": "~2.0 || dev-master",
         "neos/content-repository-search": "~3.0 || dev-master",
         "neos/neos": "~3.0 || dev-master",