diff --git a/xero_accounting.yaml b/xero_accounting.yaml
index 27864715..44942ebc 100644
--- a/xero_accounting.yaml
+++ b/xero_accounting.yaml
@@ -555,7 +555,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
     put:
       security:
         - OAuth2: [accounting.attachments]
@@ -600,7 +600,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
   /BatchPayments:
     parameters:
       - $ref: '#/components/parameters/requiredHeader'
@@ -2647,7 +2647,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
     put:
       security:
         - OAuth2: [accounting.attachments]
@@ -2692,7 +2692,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
   '/BankTransactions/{BankTransactionID}/History':
     parameters:
       - $ref: '#/components/parameters/requiredHeader'
@@ -3191,7 +3191,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
     put:
       security:
         - OAuth2: [accounting.attachments]
@@ -3235,7 +3235,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
   '/BankTransfers/{BankTransferID}/History':
     parameters:
       - $ref: '#/components/parameters/requiredHeader'
@@ -5029,7 +5029,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
     put:
       security:
         - OAuth2: [accounting.attachments]
@@ -5073,7 +5073,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
   '/Contacts/{ContactID}/CISSettings':
     parameters:
       - $ref: '#/components/parameters/requiredHeader'
@@ -6826,7 +6826,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
     put:
       security:
         - OAuth2: [accounting.attachments]
@@ -6872,7 +6872,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
   '/CreditNotes/{CreditNoteID}/pdf':
     parameters:
       - $ref: '#/components/parameters/requiredHeader'
@@ -9636,7 +9636,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
     put:
       security:
         - OAuth2: [accounting.attachments]
@@ -9682,7 +9682,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
   '/Invoices/{InvoiceID}/OnlineInvoice':
     parameters:
       - $ref: '#/components/parameters/requiredHeader'
@@ -11954,7 +11954,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
     put:
       security:
         - OAuth2: [accounting.attachments]
@@ -11999,7 +11999,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
   '/ManualJournals/{ManualJournalID}/History':
     parameters:
       - $ref: '#/components/parameters/requiredHeader'
@@ -15719,7 +15719,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
     put:
       security:
         - OAuth2: [accounting.attachments]
@@ -15764,7 +15764,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
   /Quotes:
     parameters:
       - $ref: '#/components/parameters/requiredHeader'
@@ -16753,7 +16753,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
     put:
       security:
         - OAuth2: [accounting.attachments]
@@ -16798,7 +16798,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
   /Receipts:
     parameters:
       - $ref: '#/components/parameters/requiredHeader'
@@ -17640,7 +17640,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
     put:
       security:
         - OAuth2: [accounting.attachments]
@@ -17685,7 +17685,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
   '/Receipts/{ReceiptID}/History':
     parameters:
       - $ref: '#/components/parameters/requiredHeader'
@@ -18470,7 +18470,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
     put:
       security:
         - OAuth2: [accounting.attachments]
@@ -18515,7 +18515,7 @@ paths:
           application/octet-stream:
             schema:
               type: string
-              format: byte
+              format: binary
   '/RepeatingInvoices/{RepeatingInvoiceID}/History':
     parameters:
       - $ref: '#/components/parameters/requiredHeader'