diff --git a/composer.json b/composer.json
index e52cbc8..b25fe29 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,8 @@
         "symfony/translation": "3.*",
         "symfony/dependency-injection": "3.*",
         "symfony/config": "3.*",
-        "symfony/finder": "3.4.*"
+        "symfony/finder": "3.4.*",
+        "symfony/filesystem": "3.*"
     },
     "require-dev": {
         "phpmd/phpmd": "2.*",
@@ -40,7 +41,6 @@
         "nette/finder": "2.4.*",
         "symfony/console": "3.*",
         "symfony/debug": "3.*",
-        "symfony/filesystem": "3.*",
         "symfony/event-dispatcher": "3.*",
         "symfony/options-resolver": "3.4.*",
         "symfony/process": "3.4.*",