diff --git a/src/lib/isPassportNumber.js b/src/lib/isPassportNumber.js
index aa0724cd7..917bd7a9f 100644
--- a/src/lib/isPassportNumber.js
+++ b/src/lib/isPassportNumber.js
@@ -56,7 +56,7 @@ const passportRegexByCountryCode = {
   PH: /^([A-Z](\d{6}|\d{7}[A-Z]))|([A-Z]{2}(\d{6}|\d{7}))$/, // PHILIPPINES
   PK: /^[A-Z]{2}\d{7}$/, // PAKISTAN
   PL: /^[A-Z]{2}\d{7}$/, // POLAND
-  PT: /^[A-Z]\d{6}$/, // PORTUGAL
+  PT: /^[A-Z]{1,2}\d{6}$/, // PORTUGAL
   RO: /^\d{8,9}$/, // ROMANIA
   RU: /^\d{9}$/, // RUSSIAN FEDERATION
   SE: /^\d{8}$/, // SWEDEN
diff --git a/test/validators.test.js b/test/validators.test.js
index a4c3d7193..55b890db3 100644
--- a/test/validators.test.js
+++ b/test/validators.test.js
@@ -3896,12 +3896,14 @@ describe('Validators', () => {
       validator: 'isPassportNumber',
       args: ['PT'],
       valid: [
+        'CC332125',
         'I700044',
         'K453286',
       ],
       invalid: [
         '0700044',
         'K4532861',
+        'CCC332125',
       ],
     });