diff --git a/src/actions/ActivityAction.lua b/src/actions/ActivityAction.lua
index 28b795f..7348a4e 100644
--- a/src/actions/ActivityAction.lua
+++ b/src/actions/ActivityAction.lua
@@ -1304,21 +1304,21 @@ function _M.newSignRpc(agent, data)
 	if not open then return 1 end
 
 	local actData = role.activity:getActData("NewSign")
-	if actData[actData[0] or 0] then
+	if actData[actData["0"] or 0] then
 		return 2
 	end
 
 	local actCfg = csvdb["activity_signInCsv"][actId]
 	if not actCfg then return 4 end
 
-	local sumDay = actData[0] or 0
+	local sumDay = actData["0"] or 0
 	local award = {}
 	for k, data in pairs(actCfg) do
-		if not actData[data.day] and data.day <= sumDay then
+		if not actData[tostring(data.day)] and data.day <= sumDay then
 			for id, value in pairs(data.reward:toNumMap()) do
 				award[id] = (award[id] or 0) + value
 			end
-			actData[data.day] = 1
+			actData[tostring(data.day)] = 1
 		end
 	end
 
diff --git a/src/models/Activity.lua b/src/models/Activity.lua
index 57238bb..27faaa6 100644
--- a/src/models/Activity.lua
+++ b/src/models/Activity.lua
@@ -1096,9 +1096,9 @@ activityFunc[Activity.ActivityType.NewSign] = {
 	-- end,
 	["crossDay"] = function(self, actType, notify)
 		local curData = self:getActData(actType)
-		curData[0] = (curData[0] or 0) + 1
+		curData["0"] = (curData["0"] or 0) + 1
 		local actData = csvdb["activity_signInCsv"][48] or {}
-		if curData[0] > #actData then return end -- 满了就忽略了
+		if curData["0"] > #actData then return end -- 满了就忽略了
 
 		-- 没满更新一下
 		self:updateActData(actType, curData, not notify)
--
libgit2 0.21.2