diff --git a/composer.json b/composer.json
index 5bce61b..67700a1 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
   ],
   "require": {
     "php": ">=7.0",
-    "oxid-esales/oxideshop-ce": "v6.0 - v6.3"
+    "oxid-esales/oxideshop-ce": "v6.0 - v6.5.6"
   },
   "require-dev": {
     "phpunit/phpunit" : "^9.5",