diff --git a/Data/expansions/classic/update_fields.json b/Data/expansions/classic/update_fields.json
index 4549a48c..0d61eacc 100644
--- a/Data/expansions/classic/update_fields.json
+++ b/Data/expansions/classic/update_fields.json
@@ -34,6 +34,8 @@
   "PLAYER_END": 1282,
   "GAMEOBJECT_DISPLAYID": 8,
   "ITEM_FIELD_STACK_COUNT": 14,
+  "ITEM_FIELD_DURABILITY": 48,
+  "ITEM_FIELD_MAXDURABILITY": 49,
   "CONTAINER_FIELD_NUM_SLOTS": 48,
   "CONTAINER_FIELD_SLOT_1": 50
 }
diff --git a/Data/expansions/tbc/update_fields.json b/Data/expansions/tbc/update_fields.json
index bee972ca..c6d77c76 100644
--- a/Data/expansions/tbc/update_fields.json
+++ b/Data/expansions/tbc/update_fields.json
@@ -33,6 +33,8 @@
   "PLAYER_EXPLORED_ZONES_START": 1312,
   "GAMEOBJECT_DISPLAYID": 8,
   "ITEM_FIELD_STACK_COUNT": 14,
+  "ITEM_FIELD_DURABILITY": 60,
+  "ITEM_FIELD_MAXDURABILITY": 61,
   "CONTAINER_FIELD_NUM_SLOTS": 64,
   "CONTAINER_FIELD_SLOT_1": 66
 }
diff --git a/Data/expansions/turtle/update_fields.json b/Data/expansions/turtle/update_fields.json
index 393694a0..a91a314b 100644
--- a/Data/expansions/turtle/update_fields.json
+++ b/Data/expansions/turtle/update_fields.json
@@ -34,6 +34,8 @@
   "PLAYER_END": 1282,
   "GAMEOBJECT_DISPLAYID": 8,
   "ITEM_FIELD_STACK_COUNT": 14,
+  "ITEM_FIELD_DURABILITY": 48,
+  "ITEM_FIELD_MAXDURABILITY": 49,
   "CONTAINER_FIELD_NUM_SLOTS": 48,
   "CONTAINER_FIELD_SLOT_1": 50
 }
\ No newline at end of file