diff --git a/CHANGELOG.md b/CHANGELOG.md
index 01c0a614..7290dedb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,11 @@ Changelog
 
 This is the changelog for Puppetboard.
 
+4.2.4
+-----
+
+* Fix starting the app when the SECRET_KEY is set to `bytes` instead of `str`. ([#741](https://github.com/voxpupuli/puppetboard/issues/741)).
+
 4.2.3
 -----
 
diff --git a/puppetboard/version.py b/puppetboard/version.py
index eb9c9468..83ec4572 100644
--- a/puppetboard/version.py
+++ b/puppetboard/version.py
@@ -2,4 +2,4 @@
 # Puppetboard version module
 #
 
-__version__ = '4.2.3'
+__version__ = '4.2.4'