diff --git a/composer.json b/composer.json
index e793112..1ec096f 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
     "require": {
         "php": ">=5.4",
         "nesbot/carbon": "^1.0",
-        "symfony/translation": "^2.7|^3.0"
+        "symfony/translation": "^2.7|^3.0|^4.0"
     },
     "require-dev": {
         "phpunit/phpunit": "^4.0|^5.0|^6.0",