diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4fc3b5bf..366edf8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,10 +4,10 @@ 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/).
 
-## unreleased
+## 0.17.3 (5th July 2023)
 
-- The networking backend interface has [been added to the public API](https://www.encode.io/httpcore/network-backends). Some classes which were previously private implementation detail are now part of the top-level public API. (#699)
 - Support async cancellations, ensuring that the connection pool is left in a clean state when cancellations occur. (#726)
+- The networking backend interface has [been added to the public API](https://www.encode.io/httpcore/network-backends). Some classes which were previously private implementation detail are now part of the top-level public API. (#699)
 - Graceful handling of HTTP/2 GoAway frames, with requests being transparently retried on a new connection. (#730)
 - Add exceptions when a synchronous `trace callback` is passed to an asynchronous request or an asynchronous `trace callback` is passed to a synchronous request. (#717)
 
diff --git a/httpcore/__init__.py b/httpcore/__init__.py
index d3e57ad0..da95f8d0 100644
--- a/httpcore/__init__.py
+++ b/httpcore/__init__.py
@@ -130,7 +130,7 @@ def __init__(self, *args, **kwargs):  # type: ignore
     "WriteError",
 ]
 
-__version__ = "0.17.2"
+__version__ = "0.17.3"
 
 
 __locals = locals()