diff --git a/CHANGELOG b/CHANGELOG
index e580c0e0c..1bdb12502 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,11 @@
+4.2.1 (2024-06-04)
+------------------
+Replace mysql-connector with mariadb-client
+Upgrade fs2-kafka to 3.5.1
+Update schema for com.mandrill/message_opened/jsonschema/1-0-3 (#893)
+Bump sbt-snowplow-release to 0.3.2 (#892)
+Don't pass field value to ValidatorReport if validation fails (#892)
+
 4.2.0 (2024-04-08)
 ------------------
 Switch bad row type from EnrichmentFailures to SchemaViolations for some errors (#883)
diff --git a/README.md b/README.md
index 0b623301e..2dd2b1665 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ Licensed under the [Snowplow Limited Use License Agreement][license]. _(If you a
 [coveralls]: https://coveralls.io/github/snowplow/enrich?branch=master
 [coveralls-image]: https://coveralls.io/repos/github/snowplow/enrich/badge.svg?branch=master
 
-[release-image]: https://img.shields.io/badge/release-4.2.0-blue.svg?style=flat
+[release-image]: https://img.shields.io/badge/release-4.2.1-blue.svg?style=flat
 [releases]: https://github.com/snowplow/enrich/releases
 
 [license]: https://docs.snowplow.io/limited-use-license-1.0