diff --git a/doc/src/sgml/release-12.sgml b/doc/src/sgml/release-12.sgml
index 129787b4c9..dddc7c985c 100644
--- a/doc/src/sgml/release-12.sgml
+++ b/doc/src/sgml/release-12.sgml
@@ -1939,7 +1939,7 @@ Author: Michael Paquier <michael@paquier.xyz>
       <para>
        Allow the streaming replication timeout (<xref
        linkend="guc-wal-sender-timeout"/>) to be set per connection
-       (Tsunakawa Takayuki)
+       (Takayuki Tsunakawa)
       </para>
 
       <para>
@@ -2140,7 +2140,7 @@ Author: Fujii Masao <fujii@postgresql.org>
       <para>
        Add <xref linkend="sql-vacuum"/> and <command>CREATE
        TABLE</command> options to prevent <command>VACUUM</command>
-       from truncating trailing empty pages (Tsunakawa Takayuki)
+       from truncating trailing empty pages (Takayuki Tsunakawa)
       </para>
 
       <para>
@@ -3575,7 +3575,6 @@ Author: Michael Paquier <michael@paquier.xyz>
     <member>Christoph Moench-Tegeder</member>
     <member>Clemens Ladisch</member>
     <member>Colm McHugh</member>
-    <member>Constantine Kuznetsov</member>
     <member>Corey Huinker</member>
     <member>Craig Ringer</member>
     <member>Dagfinn Ilmari Mannsåker</member>
@@ -3851,7 +3850,6 @@ Author: Michael Paquier <michael@paquier.xyz>
     <member>Sergio Conde Gómez</member>
     <member>Shawn Debnath</member>
     <member>Shay Rojansky</member>
-    <member>Sho Kato</member>
     <member>Shohei Mochizuki</member>
     <member>Shouyu Luo</member>
     <member>Simon Riggs</member>