diff --git a/composer.json b/composer.json
index a1b0c98..e3daef2 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
     ],
     "require": {
         "php": "^8.1",
-        "silverstripe/cms": "^5"
+        "silverstripe/cms": "^6"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.6",