diff --git a/CHANGELOG.md b/CHANGELOG.md
index f58a55f..3174c55 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 ## [Unreleased]
 
+## [3.1.0] - 2023-08-24
+
+### Added
+- Adds support for passing in Guzzle options to the Laravel HTTP client [`f7fa0aa150`](https://github.com/laravel-postmark/commit/f7fa0aa150)
+
 ## [3.0.5] - 2023-07-24
 ### Fixed
 - Adds fallback for message_stream_id configuration [`0f208109a9`](https://github.com/laravel-postmark/commit/0f208109a9)