diff --git a/src/TokenType/MAC.php b/src/TokenType/MAC.php
index ceac9657..29f5a81f 100644
--- a/src/TokenType/MAC.php
+++ b/src/TokenType/MAC.php
@@ -84,7 +84,7 @@ class MAC extends AbstractTokenType implements TokenTypeInterface
             return;
         }
 
-        if (abs($params->get('ts') - time()) > 3600) {
+        if (abs($params->get('ts') - time()) > 300) {
             return;
         }