diff --git a/vendor/firebase/php-jwt/src/JWT.php b/vendor/firebase/php-jwt/src/JWT.php
index 0ee7712b..151a9734 100644
--- a/vendor/firebase/php-jwt/src/JWT.php
+++ b/vendor/firebase/php-jwt/src/JWT.php
@@ -139,20 +139,20 @@ class JWT
         // Check the nbf if it is defined. This is the time that the
         // token can actually be used. If it's not yet that time, abort.
         // 取消时间验证
-        // if (isset($payload->nbf) && $payload->nbf > ($timestamp + static::$leeway)) {
-        //     throw new BeforeValidException(
-        //         'Cannot handle token prior to ' . \date(DateTime::ISO8601, $payload->nbf)
-        //     );
-        // }
+        if (isset($payload->nbf) && $payload->nbf > ($timestamp + static::$leeway)) {
+            throw new BeforeValidException(
+                'Cannot handle token prior to ' . \date(DateTime::ISO8601, $payload->nbf)
+            );
+        }
 
         // Check that this token has been created before 'now'. This prevents
         // using tokens that have been created for later use (and haven't
         // correctly used the nbf claim).
-        // if (isset($payload->iat) && $payload->iat > ($timestamp + static::$leeway)) {
-        //     throw new BeforeValidException(
-        //         'Cannot handle token prior to ' . \date(DateTime::ISO8601, $payload->iat)
-        //     );
-        // }
+        if (isset($payload->iat) && $payload->iat > ($timestamp + static::$leeway)) {
+            throw new BeforeValidException(
+                'Cannot handle token prior to ' . \date(DateTime::ISO8601, $payload->iat)
+            );
+        }
 
         // Check if this token has expired.
         if (isset($payload->exp) && ($timestamp - static::$leeway) >= $payload->exp) {