diff --git a/composer.json b/composer.json
index 3e208ea..84d2daa 100644
--- a/composer.json
+++ b/composer.json
@@ -22,8 +22,8 @@
     },
     "require": {
         "php": ">=5.4.0",
-        "symfony/http-foundation": "~2.1",
-        "symfony/http-kernel": "~2.1"
+        "symfony/http-foundation": "~2.1|~3.0|~4.0",
+        "symfony/http-kernel": "~2.1|~3.0|~4.0"
     },
     "require-dev": {
         "phpunit/phpunit": "3.7.21",