diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2510b208..d0f03e72 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -36,6 +36,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com), and this
 
 ### Fixed
 * [#1819](https://github.com/shlinkio/shlink/issues/1819) Fix incorrect timeout when running DB commands during Shlink start-up.
+* [#1901](https://github.com/shlinkio/shlink/issues/1901) Do not allow short URLs with custom slugs containing URL-reserved characters, as they will not work at all afterward.
 
 
 ## [3.6.4] - 2023-09-23