diff --git a/composer.json b/composer.json
index d264a61..6679b53 100644
--- a/composer.json
+++ b/composer.json
@@ -4,8 +4,8 @@
     "type": "neos-package",
     "license": "MIT",
     "require": {
-        "neos/flow": "^6.0 || ^7.0",
-        "neos/swiftmailer": "^7.1"
+        "neos/flow": "^6.0 || ^7.0 || ^8.0",
+        "neos/swiftmailer": "^7.3"
     },
     "suggest": [],
     "autoload": {