diff --git a/src/CONST.ts b/src/CONST.ts
index 496b7d8b28ec..9b7cd9290aa9 100755
--- a/src/CONST.ts
+++ b/src/CONST.ts
@@ -3809,8 +3809,8 @@ const CONST = {
         },
         GA: {},
         GB: {
-            regex: /^[A-Z]{1,2}[0-9R][0-9A-Z]?\s*[0-9][A-Z-CIKMOV]{2}$/,
-            samples: 'LA102UX, BL2F8FX, BD1S9LU, WR4G 6LH',
+            regex: /^[A-Z]{1,2}[0-9R][0-9A-Z]?\s*([0-9][ABD-HJLNP-UW-Z]{2})?$/,
+            samples: 'LA102UX, BL2F8FX, BD1S9LU, WR4G 6LH, W1U',
         },
         GD: {},
         GE: {