diff --git a/composer.json b/composer.json
index 17f50300..19989cc7 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
     "ext-dom": "*"
   },
   "require-dev": {
-    "contao/core-bundle": "4.9.*",
+    "contao/core-bundle": "4.4.*",
     "contao/test-case": "1.1.*",
     "contao/manager-plugin": "^2.0",
     "friendsofphp/php-cs-fixer": "^2.2",