Updated CHANGELOG.md

Author: aeon-automation

CHANGELOG.md

@@ -3,6 +3,9 @@
 ### Changed
 - [1e6528](https://github.com/coduo/php-to-string/commit/1e6528fb7ffe4b44dabe4c9f536d29728d911b6a) - **Migrated from phpspec to phpunit, added integration with aeon-php/automation** - [@norberttech](https://github.com/norberttech)
 
+### Fixed
+- [ae6aed](https://github.com/coduo/php-to-string/commit/ae6aedabe8dc30c269f8a758e22f818ad19dbf66) - **lowest supported version of phpunit** - [@norberttech](https://github.com/norberttech)
+
 ### Removed
 - [ba7b64](https://github.com/coduo/php-to-string/commit/ba7b647f3b1bf5a34d74bc6a1559533ecded8be6) - **symfony/intl dependency** - [@norberttech](https://github.com/norberttech)