diff --git a/composer.json b/composer.json
index 319b56c..4651bb7 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         "validation"
     ],
     "require": {
-        "neos/flow": "~4.1"
+        "neos/flow": "~4.1|^5.3"
     },
     "autoload": {
         "psr-4": {
@@ -66,7 +66,8 @@
             "Neos.Media-20161219094126",
             "Neos.Flow-20170125103800",
             "Neos.Flow-20170127183102",
-            "DigiComp.SettingValidator-20170603120900"
+            "DigiComp.SettingValidator-20170603120900",
+            "Neos.Flow-20180415105700"
         ]
     }
 }
\ No newline at end of file