diff --git a/src/lib/isISO4217.js b/src/lib/isISO4217.js
index bbca596a9..5f89e0e5a 100644
--- a/src/lib/isISO4217.js
+++ b/src/lib/isISO4217.js
@@ -1,9 +1,10 @@
 import assertString from './util/assertString';
 
-// from https://en.wikipedia.org/wiki/ISO_4217
+// from https://www.six-group.com/en/products-services/financial-information/data-standards.html
+// (ISO 4217 list one, the currencies and funds in current use), published 2026-09-17
 const validISO4217CurrencyCodes = new Set([
-  'AED', 'AFN', 'ALL', 'AMD', 'ANG', 'AOA', 'ARS', 'AUD', 'AWG', 'AZN',
-  'BAM', 'BBD', 'BDT', 'BGN', 'BHD', 'BIF', 'BMD', 'BND', 'BOB', 'BOV', 'BRL', 'BSD', 'BTN', 'BWP', 'BYN', 'BZD',
+  'AED', 'AFN', 'ALL', 'AMD', 'AOA', 'ARS', 'AUD', 'AWG', 'AZN',
+  'BAM', 'BBD', 'BDT', 'BHD', 'BIF', 'BMD', 'BND', 'BOB', 'BOV', 'BRL', 'BSD', 'BTN', 'BWP', 'BYN', 'BZD',
   'CAD', 'CDF', 'CHE', 'CHF', 'CHW', 'CLF', 'CLP', 'CNY', 'COP', 'COU', 'CRC', 'CUP', 'CVE', 'CZK',
   'DJF', 'DKK', 'DOP', 'DZD',
   'EGP', 'ERN', 'ETB', 'EUR',
@@ -20,14 +21,14 @@ const validISO4217CurrencyCodes = new Set([
   'PAB', 'PEN', 'PGK', 'PHP', 'PKR', 'PLN', 'PYG',
   'QAR',
   'RON', 'RSD', 'RUB', 'RWF',
-  'SAR', 'SBD', 'SCR', 'SDG', 'SEK', 'SGD', 'SHP', 'SLE', 'SLL', 'SOS', 'SRD', 'SSP', 'STN', 'SVC', 'SYP', 'SZL',
+  'SAR', 'SBD', 'SCR', 'SDG', 'SEK', 'SGD', 'SHP', 'SLE', 'SOS', 'SRD', 'SSP', 'STN', 'SVC', 'SYP', 'SZL',
   'THB', 'TJS', 'TMT', 'TND', 'TOP', 'TRY', 'TTD', 'TWD', 'TZS',
   'UAH', 'UGX', 'USD', 'USN', 'UYI', 'UYU', 'UYW', 'UZS',
   'VED', 'VES', 'VND', 'VUV',
   'WST',
-  'XAF', 'XAG', 'XAU', 'XBA', 'XBB', 'XBC', 'XBD', 'XCD', 'XDR', 'XOF', 'XPD', 'XPF', 'XPT', 'XSU', 'XTS', 'XUA', 'XXX',
+  'XAD', 'XAF', 'XAG', 'XAU', 'XBA', 'XBB', 'XBC', 'XBD', 'XCD', 'XCG', 'XDR', 'XOF', 'XPD', 'XPF', 'XPT', 'XSU', 'XTS', 'XUA', 'XXX',
   'YER',
-  'ZAR', 'ZMW', 'ZWL',
+  'ZAR', 'ZMW', 'ZWG',
 ]);
 
 export default function isISO4217(str) {
diff --git a/test/validators.test.js b/test/validators.test.js
index 98d2a12ff..ababe1c2c 100644
--- a/test/validators.test.js
+++ b/test/validators.test.js
@@ -12668,6 +12668,9 @@ describe('Validators', () => {
         'USD',
         'VED',
         'SLE',
+        'XAD',
+        'XCG',
+        'ZWG',
       ],
       invalid: [
         '',
@@ -12681,6 +12684,10 @@ describe('Validators', () => {
         'euro',
         'HRK',
         'CUC',
+        'ANG',
+        'BGN',
+        'SLL',
+        'ZWL',
       ],
     });
   });