diff --git a/composer.json b/composer.json
index 296a925..65fdd5e 100644
--- a/composer.json
+++ b/composer.json
@@ -10,6 +10,7 @@
     },
   "require-dev": {
     "phpunit/phpunit": "^9.5",
+    "silverstripe/framework": "^4.10",
     "squizlabs/php_codesniffer": "^3"
   },
   "autoload": {