diff --git a/composer.json b/composer.json
index 29f2d33..19a6b0b 100644
--- a/composer.json
+++ b/composer.json
@@ -17,9 +17,13 @@
             "role": "Developer"
         }
     ],
-    "version": "1.1.0",
+    "extra": {
+      "typo3/cms": {
+        "extension-key": "youku"
+      }
+    },
     "require": {
-        "typo3/cms-core": "^8.7.0|| ^9.5.0"
+        "typo3/cms-core": "^8.7.0 || ^9.5.0 || ^10.4.0"
     },
     "autoload": {
         "psr-4": {