diff --git a/composer.json b/composer.json
index 6a74f4ce..1d3fccf2 100644
--- a/composer.json
+++ b/composer.json
@@ -38,7 +38,7 @@
     "require": {
         "php": "^8.1",
         "ratepay/php-library": "^1.8",
-        "shopware/core": "^6.6.0",
+        "shopware/core": "^6.5.0 || 6.6.x-dev",
         "ext-simplexml": "*",
         "ext-json": "*"
     },