diff --git a/astrbot/dashboard/routes/auth.py b/astrbot/dashboard/routes/auth.py
index 1d88f6ee4..eac5f65b0 100644
--- a/astrbot/dashboard/routes/auth.py
+++ b/astrbot/dashboard/routes/auth.py
@@ -82,7 +82,8 @@ class AuthRoute(Route):
     def generate_jwt(self, username):
         payload = {
             "username": username,
-            "exp": datetime.datetime.now(datetime.timezone.utc) + datetime.timedelta(days=7),
+            "exp": datetime.datetime.now(datetime.timezone.utc)
+            + datetime.timedelta(days=7),
         }
         jwt_token = self.config["dashboard"].get("jwt_secret", None)
         if not jwt_token: