diff --git a/composer.json b/composer.json
index c9e4b5d..ef58aea 100644
--- a/composer.json
+++ b/composer.json
@@ -15,8 +15,8 @@
     "require": {
         "composer-plugin-api": "^1.0",
         "composer/installers": "^1.2",
-        "symfony/yaml": "~2.7|~3.0",
-        "symfony/finder": "~2.7|~3.0"
+        "symfony/yaml": "~3.0|^4.4",
+        "symfony/finder": "~3.0|^4.4"
     },
     "minimum-stability": "dev",
     "prefer-stable": true,