diff --git a/src/types.ts b/src/types.ts
index 8dbb5d96..7e92e708 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -248,7 +248,8 @@ export const CountryCodeList = [
   'ZW',
   'KI',
   'HK',
-  'AX'
+  'AX',
+  'UK'
 ] as const
 
 export type CountryCode = typeof CountryCodeList[number]