diff --git a/src/Symfony/Bridge/Swiftmailer/composer.json b/src/Symfony/Bridge/Swiftmailer/composer.json
index 8e53095164..9245fd2e15 100644
--- a/src/Symfony/Bridge/Swiftmailer/composer.json
+++ b/src/Symfony/Bridge/Swiftmailer/composer.json
@@ -17,7 +17,7 @@
     ],
     "require": {
         "php": ">=5.3.2",
-        "swiftmailer/swiftmailer": ">=4.1.2,<4.2-dev"
+        "swiftmailer/swiftmailer": ">=4.1.2,<4.3-dev"
     },
     "suggest": {
         "symfony/http-kernel": "self.version"