diff --git a/data/sql/updates/pending_db_world/rev_1770900184961304377.sql b/data/sql/updates/pending_db_world/rev_1770900184961304377.sql
new file mode 100644
index 000000000..d155998d1
--- /dev/null
+++ b/data/sql/updates/pending_db_world/rev_1770900184961304377.sql
@@ -0,0 +1,8 @@
+--
+-- uint8 to uint32 conversion for maxcount in npc_vendor
+-- game_event_npc_vendor does not need to be updated
+ALTER TABLE `npc_vendor` MODIFY COLUMN `maxcount` int unsigned DEFAULT 0 NOT NULL;
+
+DELETE FROM `npc_vendor` WHERE (`entry` = 29561) AND (`item` IN (21177));
+INSERT INTO `npc_vendor` (`entry`, `slot`, `item`, `maxcount`, `incrtime`, `ExtendedCost`, `VerifiedBuild`) VALUES
+(29561, 0, 21177, 300, 600, 0, 0);
diff --git a/src/server/game/Globals/ObjectMgr.cpp b/src/server/game/Globals/ObjectMgr.cpp
index 1d0b5bdfe..d2e3c8ee5 100644
--- a/src/server/game/Globals/ObjectMgr.cpp
+++ b/src/server/game/Globals/ObjectMgr.cpp
@@ -9799,7 +9799,7 @@ int ObjectMgr::LoadReferenceVendor(int32 vendor, int32 item, std::set<uint32>* s
             count += LoadReferenceVendor(vendor, -item_id, skip_vendors);
         else
         {
-            int32  maxcount     = fields[1].Get<uint8>();
+            uint32  maxcount    = fields[1].Get<uint32>();
             uint32 incrtime     = fields[2].Get<uint32>();
             uint32 ExtendedCost = fields[3].Get<uint32>();
 
@@ -9849,7 +9849,7 @@ void ObjectMgr::LoadVendors()
             count += LoadReferenceVendor(entry, -item_id, &skip_vendors);
         else
         {
-            uint32 maxcount     = fields[2].Get<uint8>();
+            uint32 maxcount     = fields[2].Get<uint32>();
             uint32 incrtime     = fields[3].Get<uint32>();
             uint32 ExtendedCost = fields[4].Get<uint32>();
 
@@ -9998,7 +9998,7 @@ void ObjectMgr::LoadGossipMenuItems()
     LOG_INFO("server.loading", " ");
 }
 
-void ObjectMgr::AddVendorItem(uint32 entry, uint32 item, int32 maxcount, uint32 incrtime, uint32 extendedCost, bool persist /*= true*/)
+void ObjectMgr::AddVendorItem(uint32 entry, uint32 item, uint32 maxcount, uint32 incrtime, uint32 extendedCost, bool persist /*= true*/)
 {
     VendorItemData& vList = _cacheVendorItemStore[entry];
     vList.AddItem(item, maxcount, incrtime, extendedCost);
@@ -10039,7 +10039,7 @@ bool ObjectMgr::RemoveVendorItem(uint32 entry, uint32 item, bool persist /*= tru
     return true;
 }
 
-bool ObjectMgr::IsVendorItemValid(uint32 vendor_entry, uint32 item_id, int32 maxcount, uint32 incrtime, uint32 ExtendedCost, Player* player, std::set<uint32>* /*skip_vendors*/, uint32 /*ORnpcflag*/) const
+bool ObjectMgr::IsVendorItemValid(uint32 vendor_entry, uint32 item_id, uint32 maxcount, uint32 incrtime, uint32 ExtendedCost, Player* player, std::set<uint32>* /*skip_vendors*/, uint32 /*ORnpcflag*/) const
 {
     /*
     CreatureTemplate const* cInfo = GetCreatureTemplate(vendor_entry);
diff --git a/src/server/game/Globals/ObjectMgr.h b/src/server/game/Globals/ObjectMgr.h
index d9f458293..0afcfdc5b 100644
--- a/src/server/game/Globals/ObjectMgr.h
+++ b/src/server/game/Globals/ObjectMgr.h
@@ -1417,9 +1417,9 @@ public:
         return &iter->second;
     }
 
-    void AddVendorItem(uint32 entry, uint32 item, int32 maxcount, uint32 incrtime, uint32 extendedCost, bool persist = true); // for event
+    void AddVendorItem(uint32 entry, uint32 item, uint32 maxcount, uint32 incrtime, uint32 extendedCost, bool persist = true); // for event
     bool RemoveVendorItem(uint32 entry, uint32 item, bool persist = true); // for event
-    bool IsVendorItemValid(uint32 vendor_entry, uint32 item, int32 maxcount, uint32 ptime, uint32 ExtendedCost, Player* player = nullptr, std::set<uint32>* skip_vendors = nullptr, uint32 ORnpcflag = 0) const;
+    bool IsVendorItemValid(uint32 vendor_entry, uint32 item, uint32 maxcount, uint32 ptime, uint32 ExtendedCost, Player* player = nullptr, std::set<uint32>* skip_vendors = nullptr, uint32 ORnpcflag = 0) const;
 
     void LoadScriptNames();
     ScriptNameContainer& GetScriptNames() { return _scriptNamesStore; }