diff --git a/.mailmap b/.mailmap
index 36324c6aa2ae9b..722995b6b04b63 100644
--- a/.mailmap
+++ b/.mailmap
@@ -143,7 +143,7 @@ San-Tai Hsu <v@fatpipi.com>
 Scott Blomquist <github@scott.blomqui.st> <sblom@microsoft.com>
 Sergey Kryzhanovsky <skryzhanovsky@gmail.com> <another@dhcp199-223-red.yandex.net>
 Shannen Saez <shannenlaptop@gmail.com>
-Shigeki Ohtsu <ohtsu@d.jp> <ohtsu@iij.ad.jp>
+Shigeki Ohtsu <ohtsu@d.jp> <ohtsu@iij.ad.jp> <ohtsu@ohtsu.org>
 Siddharth Mahendraker <siddharth_mahen@hotmail.com> <siddharth_mahen@me.com>
 Simon Willison <simon@simonwillison.net>
 Stanislav Opichal <opichals@gmail.com>
diff --git a/README.md b/README.md
index e2d66b90be14b4..fdbbb16f820e19 100644
--- a/README.md
+++ b/README.md
@@ -185,7 +185,7 @@ more information about the governance of the Node.js project, see
 * [rvagg](https://github.com/rvagg) -
 **Rod Vagg** &lt;rod@vagg.org&gt;
 * [shigeki](https://github.com/shigeki) -
-**Shigeki Ohtsu** &lt;ohtsu@iij.ad.jp&gt; (he/him)
+**Shigeki Ohtsu** &lt;ohtsu@ohtsu.org&gt; (he/him)
 * [targos](https://github.com/targos) -
 **Michaël Zasso** &lt;targos@protonmail.com&gt; (he/him)
 * [thefourtheye](https://github.com/thefourtheye) -