diff --git a/core/composer.json b/core/composer.json
index 84559db..9ec5f8a 100644
--- a/core/composer.json
+++ b/core/composer.json
@@ -41,7 +41,6 @@
         "jcalderonzumba/mink-phantomjs-driver": "~0.3.1",
         "mikey179/vfsStream": "~1.2",
         "phpunit/phpunit": "~4.8",
-        "squizlabs/php_codesniffer": ">=2.5.1",
         "symfony/css-selector": "~2.8"
     },
     "replace": {