diff --git a/src/lib/isPassportNumber.js b/src/lib/isPassportNumber.js
index aa0724cd7..ee8b64ac7 100644
--- a/src/lib/isPassportNumber.js
+++ b/src/lib/isPassportNumber.js
@@ -50,7 +50,7 @@ const passportRegexByCountryCode = {
   MT: /^\d{7}$/, // MALTA
   MZ: /^([A-Z]{2}\d{7})|(\d{2}[A-Z]{2}\d{5})$/, // MOZAMBIQUE
   MY: /^[AHK]\d{8}$/, // MALAYSIA
-  MX: /^[A-Z]\d{8}$/, // MEXICO
+  MX: /^(?:[A-Z]\d{7,8}|[A-Z][A-Z0-9]{8})$/, // MEXICO (legacy: letter + 7-8 digits, current: 9 alphanumeric)
   NL: /^[A-Z]{2}[A-Z0-9]{6}\d$/, // NETHERLANDS
   NZ: /^([Ll]([Aa]|[Dd]|[Ff]|[Hh])|[Ee]([Aa]|[Pp])|[Nn])\d{6}$/, // NEW ZEALAND
   PH: /^([A-Z](\d{6}|\d{7}[A-Z]))|([A-Z]{2}(\d{6}|\d{7}))$/, // PHILIPPINES
diff --git a/test/validators.test.js b/test/validators.test.js
index a4c3d7193..bde2dc4c2 100644
--- a/test/validators.test.js
+++ b/test/validators.test.js
@@ -3808,12 +3808,18 @@ describe('Validators', () => {
       valid: [
         'G98639222',
         'N23457890',
+        'J00000001',
+        'G20693408',
+        'J0000001',
+        'A1B2C3D4E',
       ],
       invalid: [
         'ABC34567890',
         '43986369222',
         'N234578909',
         '34567890',
+        'J000000',
+        '123456789',
       ],
     });