diff --git a/composer.json b/composer.json
index 3e8a677..288960b 100644
--- a/composer.json
+++ b/composer.json
@@ -17,14 +17,14 @@
     },
     "require": {
         "php": ">7.0",
-        "symfony/console": "^2.7 ||^3.0",
+        "symfony/console": "^2.7 ||^3.0 ||^4.0",
         "symfony/filesystem": "^2.7 ||^3.0",
         "symfony/process": "^2.7 ||^3.0",
         "silex/silex": ">=2.0 <2.3",
         "pimple/pimple": "^3.0",
         "symfony/yaml": "^2.7 ||^3.0",
         "symfony/finder": "^2.7 ||^3.0",
-        "twig/twig": "^1.3.0",
+        "twig/twig": "^1.3.0 ||^2.12.0",
         "psr/cache": "~1.0",
         "sebastian/version": "^1.0 || ^2.0",
         "symfony/expression-language": "^2.7 ||^3.0",