diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f5e7c4256..d719b08ef8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,25 @@ 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/).
 
+## 0.23.1
+
+### Added
+
+* Support for Python 3.11. (#2420)
+* Allow setting an explicit multipart boundary in `Content-Type` header. (#2278)
+* Allow `tuple` or `list` for multipart values, not just `list`. (#2355)
+* Allow `str` content for multipart upload files. (#2400)
+* Support connection upgrades. See https://www.encode.io/httpcore/extensions/#upgrade-requests
+
+### Fixed
+
+* Don't drop empty query parameters. (#2354)
+
+### Removed
+
+* Drop `.read`/`.aread` from `SyncByteStream`/`AsyncByteStream`. (#2407)
+* Drop `RawURL`. (#2241)
+
 ## 0.23.0 (23rd May, 2022)
 
 ### Changed
diff --git a/httpx/__version__.py b/httpx/__version__.py
index 68831d05c8..36a6a14f94 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__ = "0.23.0"
+__version__ = "0.23.1"
diff --git a/pyproject.toml b/pyproject.toml
index be41c92289..592a6e26e1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ classifiers = [
 ]
 dependencies = [
     "certifi",
-    "httpcore>=0.15.0,<0.16.0",
+    "httpcore>=0.15.0,<0.17.0",
     "rfc3986[idna2008]>=1.3,<2",
     "sniffio",
 ]
diff --git a/setup.py b/setup.py
index 7b44ded04a..596b378d98 100644
--- a/setup.py
+++ b/setup.py
@@ -26,6 +26,6 @@
         "certifi",
         "sniffio",
         "rfc3986[idna2008]>=1.3,<2",
-        "httpcore>=0.15.0,<0.16.0",
+        "httpcore>=0.15.0,<0.17.0",
     ],
 )