diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index a6de0b3..74c513c 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,3 +1,10 @@
+4.2.1 (Expected EOY 2024)
+-------------------------
+
+* Added a way to register and use custom serializer formats
+
+* Fixed a typo
+
 4.2.0 (2024-01-12)
 ------------------
 
diff --git a/channels_redis/__init__.py b/channels_redis/__init__.py
index 0fd7811..aef46ac 100644
--- a/channels_redis/__init__.py
+++ b/channels_redis/__init__.py
@@ -1 +1 @@
-__version__ = "4.2.0"
+__version__ = "4.2.1"