diff --git a/gen/openapi.json b/gen/openapi.json
index bc228ee9..1ae88b8c 100644
--- a/gen/openapi.json
+++ b/gen/openapi.json
@@ -2,7 +2,7 @@
     "openapi": "3.1.0",
     "info": {
         "title": "Commerce Layer API",
-        "version": "5.3.1",
+        "version": "5.3.2",
         "contact": {
             "name": "API Support",
             "url": "https://commercelayer.io",
@@ -104146,6 +104146,11 @@
                             "attributes": {
                                 "type": "object",
                                 "properties": {
+                                    "number": {
+                                        "type": "string",
+                                        "description": "Unique identifier for the stock transfer (numeric).",
+                                        "example": "1234"
+                                    },
                                     "sku_code": {
                                         "type": "string",
                                         "description": "The code of the associated SKU.",
@@ -104346,6 +104351,12 @@
                             "attributes": {
                                 "type": "object",
                                 "properties": {
+                                    "number": {
+                                        "type": "string",
+                                        "description": "Unique identifier for the stock transfer (numeric).",
+                                        "example": "1234",
+                                        "nullable": true
+                                    },
                                     "sku_code": {
                                         "type": "string",
                                         "description": "The code of the associated SKU.",
diff --git a/src/commercelayer.ts b/src/commercelayer.ts
index 73920a4f..1778e71a 100644
--- a/src/commercelayer.ts
+++ b/src/commercelayer.ts
@@ -9,7 +9,7 @@ import Debug from './debug'
 const debug = Debug('commercelayer')
 
 // Autogenerated schema version number, do not remove this line
-const OPEN_API_SCHEMA_VERSION = '5.3.1'
+const OPEN_API_SCHEMA_VERSION = '5.3.2'
 export { OPEN_API_SCHEMA_VERSION }
 
 
diff --git a/src/resources/stock_transfers.ts b/src/resources/stock_transfers.ts
index d02b389a..36e9f475 100644
--- a/src/resources/stock_transfers.ts
+++ b/src/resources/stock_transfers.ts
@@ -38,6 +38,7 @@ interface StockTransfer extends Resource {
 
 interface StockTransferCreate extends ResourceCreate {
 	
+	number?: string
 	sku_code?: string
 	quantity: number
 
@@ -52,6 +53,7 @@ interface StockTransferCreate extends ResourceCreate {
 
 interface StockTransferUpdate extends ResourceUpdate {
 	
+	number?: string
 	sku_code?: string
 	_upcoming?: boolean
 	_on_hold?: boolean