diff --git a/lib/Business/ISBN/Data.pm b/lib/Business/ISBN/Data.pm
index 2220c33..2e6e74b 100644
--- a/lib/Business/ISBN/Data.pm
+++ b/lib/Business/ISBN/Data.pm
@@ -7,7 +7,7 @@ use Carp                  qw(carp);
 use File::Basename        qw(dirname);
 use File::Spec::Functions qw(catfile);
 
-our $VERSION = '20230528.001';
+our $VERSION = '20230606.001';
 
 =encoding utf8
 
@@ -115,8 +115,8 @@ You may redistribute this under the terms of the Artistic License 2.0.
 sub _default_data {
 # BEGIN REPLACE
 	(
-	_data_date => 'Sun, 28 May 2023 04:41:04 BST',
-	_serial    => '853ad40b-92d7-497a-ba6b-abc2e864bf3a',
+	_data_date => 'Tue, 6 Jun 2023 04:41:15 BST',
+	_serial    => '414b6947-ddc5-4e63-abc6-af98a624b8da',
 	_source    => __FILE__,
 	978 => {
 		0     => [ 'English language'             => [ '00', '19', '200', '227', '2280', '2289', '229', '368', '3690', '3699', '370', '638', '6390', '6397', '6398000', '6399999', '640', '644', '6450000', '6459999', '646', '647', '6480000', '6489999', '649', '654', '6550', '6559', '656', '699', '7000', '8499', '85000', '89999', '900000', '949999', '9500000', '9999999' ] ],
@@ -218,7 +218,7 @@ sub _default_data {
 		9913  => [ 'Uganda'                       => [ '00', '07', '600', '699', '9550', '9999' ] ],
 		9914  => [ 'Kenya'                        => [ '40', '52', '700', '774', '9600', '9999' ] ],
 		9915  => [ 'Uruguay'                      => [ '40', '59', '650', '799', '9300', '9999' ] ],
-		9916  => [ 'Estonia'                      => [ '0', '0', '10', '39', '4', '5', '600', '799', '9500', '9999' ] ],
+		9916  => [ 'Estonia'                      => [ '0', '0', '10', '39', '4', '5', '600', '799', '80', '84', '850', '899', '9250', '9999' ] ],
 		9917  => [ 'Bolivia'                      => [ '0', '0', '30', '34', '600', '699', '9800', '9999' ] ],
 		9918  => [ 'Malta'                        => [ '0', '0', '20', '29', '600', '799', '9500', '9999' ] ],
 		9919  => [ 'Mongolia'                     => [ '0', '0', '20', '29', '500', '599', '9000', '9999' ] ],
diff --git a/lib/Business/ISBN/RangeMessage.xml b/lib/Business/ISBN/RangeMessage.xml
index 3a4c2a0..647da1a 100644
--- a/lib/Business/ISBN/RangeMessage.xml
+++ b/lib/Business/ISBN/RangeMessage.xml
@@ -17,8 +17,8 @@
 ]>
 <ISBNRangeMessage>
   <MessageSource>International ISBN Agency</MessageSource>
-  <MessageSerialNumber>853ad40b-92d7-497a-ba6b-abc2e864bf3a</MessageSerialNumber>
-  <MessageDate>Sun, 28 May 2023 04:41:04 BST</MessageDate>
+  <MessageSerialNumber>414b6947-ddc5-4e63-abc6-af98a624b8da</MessageSerialNumber>
+  <MessageDate>Tue, 6 Jun 2023 04:41:15 BST</MessageDate>
   <EAN.UCCPrefixes>
     <EAN.UCC>
       <Prefix>978</Prefix>
@@ -3909,11 +3909,19 @@
           <Length>3</Length>
         </Rule>
         <Rule>
-          <Range>8000000-9499999</Range>
+          <Range>8000000-8499999</Range>
+          <Length>2</Length>
+        </Rule>
+        <Rule>
+          <Range>8500000-8999999</Range>
+          <Length>3</Length>
+        </Rule>
+        <Rule>
+          <Range>9000000-9249999</Range>
           <Length>0</Length>
         </Rule>
         <Rule>
-          <Range>9500000-9999999</Range>
+          <Range>9250000-9999999</Range>
           <Length>4</Length>
         </Rule>
       </Rules>