diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3d2eaae..b0747cf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [0.3.1] - 2020-04-03
+
+### Added
 - Prepared pipenv virtual environment.
 
 ## [0.3] - 2020-03-23