diff --git a/src/composer.json b/src/composer.json
index 0829e8f2..6b14049e 100644
--- a/src/composer.json
+++ b/src/composer.json
@@ -30,7 +30,7 @@
     "require": {
         "mibew/handlebars.php": "~0.10.5",
         "mibew/handlebars.php-helpers": "1.*",
-        "symfony/http-foundation": "2.6.*",
+        "symfony/http-foundation": "~2.8.52",
         "symfony/routing": "2.6.*",
         "symfony/config": "2.6.*",
         "symfony/yaml": "2.6.*",