diff --git a/CHANGELOG.md b/CHANGELOG.md
index 181927f0..4f5686b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to the LaunchDarkly Python SDK will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [6.13.3] - 2021-02-23
+### Fixed:
+- The SDK could fail to send debug events when event debugging was enabled on the LaunchDarkly dashboard, if the application server's time zone was not GMT.
+
 ## [6.13.2] - 2020-09-21
 ### Fixed:
 - The SDK was not recognizing proxy authorization parameters included in a proxy URL (example: `http://username:password@proxyhost:port`). It will now use these parameters if present, regardless of whether you set the proxy URL programmatically or in an environment variable. (Thanks, [gangeli](https://github.com/launchdarkly/python-server-sdk/pull/145)!)
diff --git a/ldclient/version.py b/ldclient/version.py
index a9336f71..7bfde60e 100644
--- a/ldclient/version.py
+++ b/ldclient/version.py
@@ -1 +1 @@
-VERSION = "6.13.2"
+VERSION = "6.13.3"