diff --git a/CHANGELOG.md b/CHANGELOG.md
index c5cf8818544..32f8fe60232 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -45,6 +45,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### API Breaking
 
+* (06-solomachine) [\#169](https://github.com/cosmos/ibc-go/pull/169) Change FrozenSequence to boolean in solomachine ClientState.
 * (modules) [\#162](https://github.com/cosmos/ibc-go/pull/162) Remove deprecated Handler types in core IBC and the ICS 20 transfer module. 
 * (modules/core) [\#161](https://github.com/cosmos/ibc-go/pull/161) Remove Type(), Route(), GetSignBytes() from 02-client, 03-connection, and 04-channel messages.
 * (modules) [\#140](https://github.com/cosmos/ibc-go/pull/140) IsFrozen() client state interface changed to Status(). gRPC `ClientStatus` route added.