diff --git a/composer.json b/composer.json
index bd7c901..aae41c7 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     "license": "MIT",
     "homepage": "https://github.com/digicomp/DigiComp.Sequence",
     "require": {
-        "neos/flow": "~4.0"
+        "neos/flow": "~4.0|~5.3"
     },
     "autoload": {
         "psr-4": {
@@ -60,7 +60,9 @@
             "TYPO3.FluidAdaptor-20161130112935",
             "Neos.Media-20161219094126",
             "Neos.Flow-20170125103800",
-            "Neos.Flow-20170127183102"
+            "Neos.Flow-20170127183102",
+            "DigiComp.SettingValidator-20170603120900",
+            "Neos.Flow-20180415105700"
         ]
     }
 }
\ No newline at end of file