1 files changed, 2 insertions, 2 deletions
diff --git a/vendor/macgirvin/http-message-signer/src/HttpMessageSigner.php b/vendor/macgirvin/http-message-signer/src/HttpMessageSigner.php
index 7d1f12dbf..977bed4cd 100644
--- a/vendor/macgirvin/http-message-signer/src/HttpMessageSigner.php
+++ b/vendor/macgirvin/http-message-signer/src/HttpMessageSigner.php
@@ -240,12 +240,12 @@ class HttpMessageSigner
                     }
                     $parameters = $this->extractParameters($members);
 
-                    if ($parameters['expires']) {
+                    if (isset($parameters['expires'])) {
                         $expires = (int) $parameters['expires'];
                         if ($expires < time()) {
                             return false;
                         }
-                        if ($parameters['created']) {
+                        if (isset($parameters['created'])) {
                             $created = (int) $parameters['created'];
                             if ($created >= $expires) {
                                 return false;