diff --git a/src/lib/isPassportNumber.js b/src/lib/isPassportNumber.js
index 949e38211..4c38bfbbe 100644
--- a/src/lib/isPassportNumber.js
+++ b/src/lib/isPassportNumber.js
@@ -50,7 +50,7 @@ const passportRegexByCountryCode = {
   PL: /^[A-Z]{2}\d{7}$/, // POLAND
   PT: /^[A-Z]\d{6}$/, // PORTUGAL
   RO: /^\d{8,9}$/, // ROMANIA
-  RU: /^\d{2}\d{2}\d{6}$/, // RUSSIAN FEDERATION
+  RU: /^\d{9}$/, // RUSSIAN FEDERATION
   SE: /^\d{8}$/, // SWEDEN
   SL: /^(P)[A-Z]\d{7}$/, // SLOVANIA
   SK: /^[0-9A-Z]\d{7}$/, // SLOVAKIA
diff --git a/test/validators.js b/test/validators.js
index 0f1b14e70..e258c0f81 100644
--- a/test/validators.js
+++ b/test/validators.js
@@ -3078,14 +3078,16 @@ describe('Validators', () => {
       validator: 'isPassportNumber',
       args: ['RU'],
       valid: [
-        '26 32 636829',
-        '0121 345321',
-        '4398636928',
+        '2 32 636829',
+        '012 345321',
+        '439863692',
       ],
       invalid: [
-        'AZ 2R YU46J',
-        '012A 3D5321',
-        'SF233D532T',
+        'A 2R YU46J0',
+        '01A 3D5321',
+        'SF233D53T',
+        '12345678',
+        '1234567890',
       ],
     });