diff --git a/src/utils/const.ts b/src/utils/const.ts
index aa4b8779157..e4a47573efe 100644
--- a/src/utils/const.ts
+++ b/src/utils/const.ts
@@ -1,5 +1,8 @@
 // const
 const MAPBOX_TOKEN =
+  // For security reasons, please avoid using the default public token provided by Mapbox as much as possible.
+  // Instead, manually add a new token and apply URL restrictions.
+  // (please refer to https://github.com/yihong0618/running_page/issues/643#issuecomment-2042668580)
   'pk.eyJ1IjoieWlob25nMDYxOCIsImEiOiJja2J3M28xbG4wYzl0MzJxZm0ya2Fua2p2In0.PNKfkeQwYuyGOTT_x9BJ4Q';
 const MUNICIPALITY_CITIES_ARR = [
   '北京市',