修改

config/jwt.php

@@ -12,7 +12,7 @@ return [
     //Refresh time to live
     'refresh_ttl' => env('JWT_REFRESH_TTL', 20160),
     //JWT hashing algorithm
-    'algo'        => env('JWT_ALGO', 'HS256'),
+    'algo'        => env('JWT_ALGO', 'HS384'),
 
     'blacklist_storage' => thans\jwt\provider\storage\Tp6::class,
 ];