diff --git a/phpBB/phpbb/composer.json b/phpBB/phpbb/composer.json
index 1d6e6bca5b..606a2784bc 100644
--- a/phpBB/phpbb/composer.json
+++ b/phpBB/phpbb/composer.json
@@ -21,4 +21,7 @@
 	"autoload": {
 		"classmap": [""]
 	}
+	"require": {
+		"php": ">=5.3.3"
+    }
 }