diff --git a/index.php b/index.php
index acc8b3e..89d7f08 100644
--- a/index.php
+++ b/index.php
@@ -27,7 +27,7 @@ function processInput($input) {
         if ($firstFourDigits >= 2007 && $firstFourDigits <= 2025) {
             return ['valid' => $cleanedInput];
         } else {
-            return ['invalid' => $cleanedInput, 'reason' => 'First four digits are not within 2004-2018'];
+            return ['invalid' => $cleanedInput, 'reason' => 'First four digits are not within 2007-2025'];
         }
     } else {
         return ['invalid' => $cleanedInput, 'reason' => 'Not 17 digits long'];