diff --git a/src/actions/ActivityAction.lua b/src/actions/ActivityAction.lua
index 6ab9788..8f5d92e 100644
--- a/src/actions/ActivityAction.lua
+++ b/src/actions/ActivityAction.lua
@@ -1345,8 +1345,8 @@ function _M.buyBattleCommandLvlRpc(agent, data)
 	end
 	if cost == 0 then return 5 end
 
-	if not role:checkItemEnough({[ItemId.Jade] = cost}) then return 6 end
-	role:costItems({[ItemId.Jade] = cost}, {log = {desc = "actBuyBpLevel", int1 = curLvl}})
+	if not role:checkItemEnough({[ItemId.Diamond] = cost}) then return 6 end
+	role:costItems({[ItemId.Diamond] = cost}, {log = {desc = "actBuyBpLevel", int1 = curLvl}})
 	actData["lvl"] = nextLvl
 	role.activity:updateActData("BattleCommand", actData)
 	role:mylog("act_action", {desc="buyBcLvl", int1=count, int2=nextLvl})
--
libgit2 0.21.2