diff --git a/composer.json b/composer.json
index f6fbb8fa7f6..0c9aac588f2 100644
--- a/composer.json
+++ b/composer.json
@@ -89,7 +89,7 @@
     "require-dev": {
         "phpunit/phpunit": "3.7.*",
         "twig/twig": "*",
-        "smarty/smarty": "*",
+        "smarty/smarty": "~3.0.0",
         "imagine/imagine": "v0.5.0",
         "swiftmailer/swiftmailer": "*",
         "fzaninotto/faker": "*",