diff --git a/CHANGELOG.md b/CHANGELOG.md
index b00c5a2..16079bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Index out of range during negotiation (Grivus). [#143](https://github.com/passepartoutvpn/tunnelkit/pull/143)
 - Handle server shutdown/restart (remote `--explicit-exit-notify`). [#131](https://github.com/passepartoutvpn/tunnelkit/issues/131)
 - Abrupt disconnection upon unknown packet key id (johankool). [#161](https://github.com/passepartoutvpn/tunnelkit/pull/161)
+- Handle explicit IPv4/IPv6 protocols (`4` or `6` suffix in `--proto`). [#153](https://github.com/passepartoutvpn/tunnelkit/issues/153)
 - Pointer warnings from Xcode 11.4 upgrade.
 
 ## 2.2.1 (2019-12-14)