diff --git a/ospo-book/AUTHORS.md b/ospo-book/AUTHORS.md
index 639ca8cb..65ad02dc 100644
--- a/ospo-book/AUTHORS.md
+++ b/ospo-book/AUTHORS.md
@@ -33,6 +33,7 @@ This list is updated every time a new release is published, but you can open a P
 - Stephanie Lieggi
 - Supriya Ashish Chitale
 - Takanori Suzuki
+- Ulises Gascón
 - Victor Lu
 
 
diff --git a/ospo-book/content/en/07-chapter.md b/ospo-book/content/en/07-chapter.md
index 0f2d766c..32fc1bc9 100644
--- a/ospo-book/content/en/07-chapter.md
+++ b/ospo-book/content/en/07-chapter.md
@@ -33,6 +33,7 @@ open a Pull Request (PR) at any time to add their names to the list if they have
 * Stephanie Lieggi
 * Supriya Ashish Chitale
 * Takanori Suzuki
+* Ulises Gascon
 * Victor Lu
 
 If you would like to start making your first contributions, we recommend [subscribing to the mailing list](https://lists.todogroup.org/g/WG-ospo-book-project), read past meeting summaries in the message archive, and introduce yourself to the group.