diff --git a/composer.json b/composer.json
index fb71fb1..c370bda 100644
--- a/composer.json
+++ b/composer.json
@@ -23,6 +23,7 @@
     },
     "require-dev": {
         "phpunit/phpunit": "^9.5",
+        "silverstripe/framework": "^4.10",
         "squizlabs/php_codesniffer": "^3.0"
     },
     "autoload": {