Update CHANGELOG

Author: connesy

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## [Unreleased](https://github.com/SallingGroup-AI-and-ML/venv-cli/tree/develop)
 
+### Bugfixes
+* Fixed `venv lock` failing to lock when called as part of `venv install`. [#21](https://github.com/SallingGroup-AI-and-ML/venv-cli/pull/21)
+
 ## [v1.4.0](https://github.com/SallingGroup-AI-and-ML/venv-cli/releases/tag/v1.4.0) (2023-10-30)
 
 ### Minor changes