diff --git a/index.php b/index.php
index 3444c01..55bacf1 100644
--- a/index.php
+++ b/index.php
@@ -2,9 +2,9 @@
 
 define('DEFAULT_TITLE', 'Mon panier bio');
 
-define('REQUEST_REGEX', '/\/(?<supplier>[^\/]+)\/?(?<event>[^\/]+)?\/?$/');
-define('SUPPLIER_REGEX', '/^[A-Za-z]\w{0,31}$/');
-define('EVENT_REGEX', '/^\d{4}\-[01]\d\-[0123]\d$/');
+define('SUPPLIER_REGEX', '[A-Za-z]\w{0,31}');
+define('EVENT_REGEX', '\d{4}\-[01]\d\-[0123]\d');
+define('REQUEST_REGEX', '/^https?:\/\/.+\/(?<supplier>' . SUPPLIER_REGEX . ')\/?(?<event>' . EVENT_REGEX . ')?\/?$/');
 define('ACTION_REGEX', '/^[a-z]{1,16}$/i');
 
 $baseUrl = trim((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? "https" : "http") . "://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'], '/');
@@ -77,7 +77,7 @@ if (!isset($config)) $config = [];
 $action = (isset($_REQUEST['action']) and preg_match(ACTION_REGEX, $_REQUEST['action'])) ? $_REQUEST['action'] : null;
 
 $supplier = array_key_exists('supplier', $_REQUEST) ? $_REQUEST['supplier'] : $requestSupplier;
-$hasSupplier = is_string($supplier) and preg_match(SUPPLIER_REGEX, $supplier);
+$hasSupplier = is_string($supplier) and preg_match('/^' . SUPPLIER_REGEX . '$/', $supplier);
 
 $excludesFormatter = new \IntlDateFormatter('fr_FR.UTF8', \IntlDateFormatter::SHORT, \IntlDateFormatter::NONE, 'Europe/Paris');
 
@@ -195,7 +195,7 @@ try {
 	$event = array_key_exists('event', $_REQUEST) ? $_REQUEST['event'] : $requestEvent;
 	$hasEvent = (
 		is_string($event)
-		and preg_match(EVENT_REGEX, $event)
+		and preg_match('/^' . EVENT_REGEX . '$/', $event)
 		and ((new \DateTimeImmutable($event)) instanceof \DateTimeImmutable)
 	);
 } catch (\Exception $exception) {