diff --git a/config/jwt.php b/config/jwt.php
index 9d942fb..efaaf22 100644
--- a/config/jwt.php
+++ b/config/jwt.php
@@ -33,7 +33,7 @@ return [
     |
     */
 
-    'ttl' => 525600,
+    'ttl' => 525600, // １年
 
     /*
     |--------------------------------------------------------------------------
@@ -47,7 +47,7 @@ return [
     |
     */
 
-    'refresh_ttl' => 3153600,
+    'refresh_ttl' => 3153600, // ６年
 
     /*
     |--------------------------------------------------------------------------