diff --git a/deploy/apisix/lua/auth.lua b/deploy/apisix/lua/auth.lua
index d003ce7..3864c5d 100644
--- a/deploy/apisix/lua/auth.lua
+++ b/deploy/apisix/lua/auth.lua
@@ -26,6 +26,7 @@ function _M.access(conf, ctx)
         ["/api/v3/chore/answer/items"]  = true,
         ["/api/v3/chore/system/info"]   = true,
         ["/api/v3/chore/system/items"]  = true,
+        ["/api/v3/chore/oss/signature"] = true,
 
         ["/api/v3/user/qrcode/generate"] = true,
         ["/api/v3/user/qrcode/scan"]     = true,