diff --git a/composer.json b/composer.json
index a63f2893f..f48e5dfcb 100644
--- a/composer.json
+++ b/composer.json
@@ -23,8 +23,9 @@
         "issues": "https://github.com/wallabag/wallabag/issues"
     },
     "require": {
+        "php": ">=5.3.3",
         "twig/twig": "1.*",
         "twig/extensions": "1.0.*",
         "umpirsky/twig-gettext-extractor": "1.1.*"
     }
-}
\ No newline at end of file
+}