diff --git a/AUTHORS b/AUTHORS
index 681ff014b..e6d1383a7 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -51,6 +51,7 @@ Other contributors, listed alphabetically, are:
 * Rob Ruana -- napoleon extension
 * Stefan Seefeld -- toctree improvements
 * Shibukawa Yoshiki -- pluggable search API and Japanese search
+* Taku Shimizu -- epub3 builder
 * Antonio Valentino -- qthelp builder
 * Filip Vavera -- napoleon todo directive
 * Pauli Virtanen -- autodoc improvements, autosummary extension
diff --git a/CHANGES b/CHANGES
index 6e24919eb..ae7cce2d4 100644
--- a/CHANGES
+++ b/CHANGES
@@ -49,6 +49,7 @@ Features added
 * #2230: Add ``math_number_all`` option to number all displayed math in math extensions
 * #2235: ``needs_sphinx`` supports micro version comparison
 * #2282: Add "language" attribute to html tag in the "basic" theme
+* #1779: Add EPUB 3 builder
 
 Bugs fixed
 ----------