diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4fd22ddd7..1ec462196 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
 # Change Log
 All notable changes to this project will be documented in this file.
 
+## [5.3.0] - 2017-10-23 ##
+### Added
+- Pull #348: Allows users to submit rfc822 formatted email addresses
+- Big thanks to [Matt Bernier](https://github.com/mbernier) for the pull request!
+
 ## [5.2.1] - 2017-10-21 ##
 ### Fixed
 - Pull #364: Install prism with non superuser account 
diff --git a/docker/README.md b/docker/README.md
index 4282d6bd0..8d89da654 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -1,5 +1,6 @@
 # Supported tags and respective `Dockerfile` links
- - `v5.2.1`, `latest` [(Dockerfile)](https://github.com/sendgrid/sendgrid-python/blob/master/docker/Dockerfile)
+ - `v5.3.0`, `latest` [(Dockerfile)](https://github.com/sendgrid/sendgrid-python/blob/master/docker/Dockerfile)
+ - `v5.2.1`
  - `v5.2.0`
  - `v5.1.0`
  - `v5.0.1`
diff --git a/sendgrid/version.py b/sendgrid/version.py
index 728e76b12..3098f851d 100644
--- a/sendgrid/version.py
+++ b/sendgrid/version.py
@@ -1,2 +1,2 @@
-version_info = (5, 2, 1)
+version_info = (5, 3, 0)
 __version__ = '.'.join(str(v) for v in version_info)