diff --git a/composer.json b/composer.json
index b988770..01ead18 100644
--- a/composer.json
+++ b/composer.json
@@ -16,13 +16,13 @@
     ],
     "require": {
         "php": "~7.0|~7.1",
-        "symfony/framework-bundle": "^2.8.18|^3.0|^4.0",
-        "symfony/property-info": "^2.8|^3.0|^4.0",
+        "symfony/framework-bundle": "^3.1|^4.0",
+        "symfony/property-info": "^3.1|^4.0",
         "exsyst/swagger": "~0.2.3",
         "zircote/swagger-php": "^2.0.9"
     },
     "require-dev": {
-        "symfony/twig-bundle": "^2.8|^3.0|^4.0",
+        "symfony/twig-bundle": "^3.0|^4.0",
         "symfony/asset": "^2.8|^3.0|^4.0",
         "symfony/console": "^2.8|^3.0|^4.0",
         "symfony/config": "^2.8|^3.0|^4.0",