diff --git a/composer.json b/composer.json
index 90ec304..9b3ef7f 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
     "require": {
         "php": "^8.1",
         "dragonmantank/cron-expression": "^3",
-        "silverstripe/framework": "^5"
+        "silverstripe/framework": "^5.4"
     },
     "require-dev": {
         "phpunit/phpunit": "^9.6",