diff --git a/composer.json b/composer.json
index bcf0917a504c340b615034270b05dfdacda2972b..983de4cb7fe47580643717b69cbf26bba47e7997 100644
--- a/composer.json
+++ b/composer.json
@@ -39,8 +39,10 @@
         "lakedrops/docker4drupal": "^1.0.0",
         "lakedrops/dorgflow": "^1.0.0",
         "mikey179/vfsStream": "^1.6",
+        "phpmd/phpmd": "^2.6.0",
         "phpspec/prophecy": "^1.8",
         "phpunit/phpunit": "4 - 5",
+        "squizlabs/php_codesniffer": "^3.3",
         "symfony/css-selector": "^3.4",
         "symfony/debug": "^3.4",
         "symfony/phpunit-bridge": "^3.4"