diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26bde81..562f36f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,9 +5,11 @@ 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
+
+## 0.5.3 - 2019-08-06
 ### Fixed
 - Fix two format arguments in debug output printing (fairly pedantic; not even
-  caught by clang analyzer).
+  caught by clang analyser).
 - Limit DHCP options to 255 bytes (not 256).
 - Exit if a DHCP option is too long.