diff --git a/composer.json b/composer.json
index 10d4b7d..29f92ce 100644
--- a/composer.json
+++ b/composer.json
@@ -7,7 +7,8 @@
         "php": "~7.2",
         "ext-curl": "*",
         "guzzlehttp/guzzle": "~6.0 || ~7.0",
-        "neos/neos": "~5.0"
+        "neos/neos": "^5.0",
+        "neos/flow": "^6.3.16"
     },
     "autoload": {
         "psr-4": {