diff --git a/game.proto b/game.proto
index 8a42226..ddf5217 100644
--- a/game.proto
+++ b/game.proto
@@ -104,6 +104,5 @@ message EquipmentAddRsp {
 
 message HeroUpLevelReq {
   string heroId = 1;
-  int32 itemId = 2;
-  int32 count = 3;
+  string items = 2; // [itemId1=count1, itemId2=count2]
 }
\ No newline at end of file
--
libgit2 0.21.2