diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index c4a66be7b..38cabff08 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -39,6 +39,7 @@ Picocli follows [semantic versioning](http://semver.org/).
 * [#1457] DOC: add caution about arguments in @files with quoted option parameters. Thanks to [Andreas Deininger](https://github.com/deining) for the pull request.
 * [#1461] BUILD: Allow publishing without signing for non-release versions. Thanks to [Andreas Deininger](https://github.com/deining) for raising this.
 * [#1459] BUILD: The nexus-staging Gradle plugin must be applied to the root project, not to subprojects. Thanks to [Andreas Deininger](https://github.com/deining) for raising this.
+* [#1503] BUILD: Fix failing `System.exit` tests on Java 18.
 * [#1504] BUILD: Run tests on Java 5/6/7 in CI environment.
 * [#1495] DEP: Bump validation-api from 2.0.0.Final to 2.0.1.Final
 * [#1496] DEP: Bump biz.aQute.bnd.gradle from 5.1.2 to 6.1.0