diff --git a/CHANGELOG.md b/CHANGELOG.md
index 856bc291..c697d055 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@ 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/).
 
+## 0.13.1 (May 22nd, 2020)
+
+### Fixed
+
+* Fix pool options deprecation warning. (Pull #980)
+* Include `httpx.URLLib3ProxyTransport` in top-level API. (Pull #979)
+
 ## 0.13.0 (May 22nd, 2020)
 
 This release switches to `httpcore` for all the internal networking, which means:
diff --git a/httpx/__version__.py b/httpx/__version__.py
index abdcf2d7..d18f33ad 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__ = "0.13.0"
+__version__ = "0.13.1"