diff --git a/src/lib/isBIC.js b/src/lib/isBIC.js
index b5576b24e..b0f586728 100644
--- a/src/lib/isBIC.js
+++ b/src/lib/isBIC.js
@@ -9,7 +9,9 @@ export default function isBIC(str) {
 
   // toUpperCase() should be removed when a new major version goes out that changes
   // the regex to [A-Z] (per the spec).
-  if (!CountryCodes.has(str.slice(4, 6).toUpperCase())) {
+  const countryCode = str.slice(4, 6).toUpperCase();
+
+  if (!CountryCodes.has(countryCode) && countryCode !== 'XK') {
     return false;
   }
 
diff --git a/test/validators.test.js b/test/validators.test.js
index 86b3522b7..3a46a35c1 100644
--- a/test/validators.test.js
+++ b/test/validators.test.js
@@ -5183,6 +5183,7 @@ describe('Validators', () => {
         'SBICKEN1',
         'SBICKENY',
         'SBICKEN1YYP',
+        'SBICXKN1YYP',
       ],
       invalid: [
         'SBIC23NXXX',
@@ -5191,6 +5192,7 @@ describe('Validators', () => {
         'SBICKENXX9',
         'SBICKEN13458',
         'SBICKEN',
+        'SBICXK',
       ],
     });
   });