diff --git a/src/Biblys/Isbn/groups-array.php b/src/Biblys/Isbn/groups-array.php
index 6ed55e4..8f0fd25 100644
--- a/src/Biblys/Isbn/groups-array.php
+++ b/src/Biblys/Isbn/groups-array.php
@@ -363,9 +363,8 @@
         ['4500000', '5499999', 0],
         ['5500000', '7793999', 4],
         ['7794000', '7794999', 5],
-        ['7795000', '8749999', 4],
-        ['8750000', '9249999', 0],
-        ['9250000', '9999999', 5],
+        ['7795000', '8999999', 4],
+        ['9000000', '9999999', 5],
     ]],
     '978-626' => ['Taiwan', [
         ['0000000', '0499999', 2],