diff --git a/CHANGELOG.md b/CHANGELOG.md
index 90cf32a..3671958 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- Add fall back in case of the primary server is not defined. ([@chubchenko][])
+- Require `json` to convert `Hash` object to `JSON`. ([@chubchenko][])
 
 ## [0.1.4] - 2021-07-27
 ### Fixed