diff --git a/composer.json b/composer.json
index 04a3c1736..43302790b 100644
--- a/composer.json
+++ b/composer.json
@@ -19,10 +19,10 @@
     },
     "require-dev": {
         "squizlabs/php_codesniffer": "~3.2",
-        "phpmd/phpmd": "~1.5",
-        "sensiolabs/security-checker": "~1.1",
+        "phpmd/phpmd": "~2.6",
+        "sensiolabs/security-checker": "~4.1",
         "phpunit/phpunit": "~4",
-        "sebastian/phpcpd": "~1.4",
+        "sebastian/phpcpd": "~2.0",
         "mockery/mockery": "~0.9"
     },
     "autoload": {