diff --git a/framework/core/composer.json b/framework/core/composer.json
index 618a1687f..6d8988e91 100644
--- a/framework/core/composer.json
+++ b/framework/core/composer.json
@@ -20,7 +20,8 @@
         "fzaninotto/faker": "1.4.0",
         "codeception/codeception": "~2.0.0",
         "codeception/mockery-module": "*",
-        "laracasts/testdummy": "~2.0"
+        "laracasts/testdummy": "~2.0",
+        "squizlabs/php_codesniffer": "1.*"
     },
     "autoload": {
         "psr-4": {