diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9230601625..d7d8020aab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## 0.21.3 (6th January, 2022)
+
+### Fixed
+
+* Fix streaming uploads using `SyncByteStream` or `AsyncByteStream`. Regression in 0.12.2. (#2016)
+
 ## 0.21.2 (5th January, 2022)
 
 ### Fixed
diff --git a/httpx/__version__.py b/httpx/__version__.py
index 4b45451cea..70decd1bbe 100644
--- a/httpx/__version__.py
+++ b/httpx/__version__.py
@@ -1,3 +1,3 @@
 __title__ = "httpx"
 __description__ = "A next generation HTTP client, for Python 3."
-__version__ = "0.21.2"
+__version__ = "0.21.3"