diff --git a/CHANGES.rst b/CHANGES.rst
index 5effeb70..6a82189a 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -3,6 +3,15 @@ Change log
 
 .. note:: **Upgrade notes**: after upgrading, run the ``arouteserver setup-templates`` command to sync the local templates with those distributed with the new version. More details on the `Upgrading <https://arouteserver.readthedocs.io/en/latest/INSTALLATION.html#upgrading>`__ section of the documentation.
 
+1.21.6
+------
+
+- Fix: fetching Registro.br dataset via HTTPS.
+
+  A *"Can't decode Registro.br Whois DB raw file"* error was raised when trying to fetch the dataset from Registro.br using HTTPS.
+
+  See also `GitHub PR 128 <https://github.com/pierky/arouteserver/issues/128>`__.
+
 1.21.5
 ------
 
diff --git a/pierky/arouteserver/version.py b/pierky/arouteserver/version.py
index c312dda3..4a773c75 100644
--- a/pierky/arouteserver/version.py
+++ b/pierky/arouteserver/version.py
@@ -13,5 +13,5 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-__version__ = "1.21.5" # pragma: no cover
+__version__ = "1.21.6" # pragma: no cover
 COPYRIGHT_YEAR = 2024 # pragma: no cover