diff --git a/gate.lua b/gate.lua
index d6a13ad..47a9907 100644
--- a/gate.lua
+++ b/gate.lua
@@ -1,7 +1,7 @@
 local DEFAULT_SERVER_BASE = "http://ticket.fse-media.group"
 local DEFAULT_SERVER_PATH = "/api/tickets/check"
 local GATE_OPEN_SECONDS = 2
-local VERSION = "v1.5.21"
+local VERSION = "v1.5.22"
 local VERSION_CHECK_INTERVAL = 5
 
 local serverURL = nil
@@ -1465,7 +1465,7 @@ local function checkAndApplyUpdate()
   
   if not remoteTs or remoteTs <= 0 then return end
   
-  local attemptFile = ".last_update_ts_gate"
+  local attemptFile = ".last_update_ts_gate2"
   if fs.exists(attemptFile) then
     local f = fs.open(attemptFile, "r")
     local tried = tonumber(f and f.readAll() or "0") or 0
@@ -1495,6 +1495,7 @@ local function checkAndApplyUpdate()
         print("OTA Update Error: " .. tostring(res))
         term.setTextColor(colors.white)
       end
+      sleep(3)
     end
   else
     lastUpdateError = "loadfile failed: " .. tostring(err)
@@ -1503,6 +1504,7 @@ local function checkAndApplyUpdate()
       print("OTA Update Error: " .. tostring(err))
       term.setTextColor(colors.white)
     end
+    sleep(3)
   end
   
   isUpdating = false
diff --git a/refillmachine.lua b/refillmachine.lua
index 58361cf..315e272 100644
--- a/refillmachine.lua
+++ b/refillmachine.lua
@@ -1,4 +1,4 @@
-local VERSION = "v1.5.21"
+local VERSION = "v1.5.22"
 local MACHINE_SIDE = "bottom"
 local PAYMENT_SIDE = "right"
 local PRESET_AMOUNTS = { 5, 10, 15, 20 }
diff --git a/ticketmachine.lua b/ticketmachine.lua
index b77ee02..74f9c4a 100644
--- a/ticketmachine.lua
+++ b/ticketmachine.lua
@@ -1,6 +1,6 @@
 local CURRENT_STATION_CODE = 'Ticket-Machine'
 local API_BASE = 'http://ticket.fse-media.group/api'
-local VERSION = 'v1.5.21'
+local VERSION = 'v1.5.22'
 local UPDATE_CHECK_INTERVAL = 5
 
 -- ###########################
@@ -695,7 +695,7 @@ local function checkAndApplyUpdate()
   
   if not remoteTs or remoteTs <= 0 then return end
   
-  local attemptFile = ".last_update_ts"
+  local attemptFile = ".last_update_ts2"
   if fs.exists(attemptFile) then
     local f = fs.open(attemptFile, "r")
     local tried = tonumber(f and f.readAll() or "0") or 0
@@ -722,6 +722,7 @@ local function checkAndApplyUpdate()
         print("OTA Update Error: " .. tostring(res))
         term.setTextColor(colors.white)
       end
+      sleep(3)
     end
   else
     lastUpdateError = "loadfile failed: " .. tostring(err)
@@ -730,6 +731,7 @@ local function checkAndApplyUpdate()
       print("OTA Update Error: " .. tostring(err))
       term.setTextColor(colors.white)
     end
+    sleep(3)
   end
   
   isUpdating = false