diff --git a/mqtt_io/__init__.py b/mqtt_io/__init__.py
index 8fe5089d..255c44e6 100644
--- a/mqtt_io/__init__.py
+++ b/mqtt_io/__init__.py
@@ -2,4 +2,4 @@
 Top level of MQTT IO package.
 """
 
-VERSION = "2.4.1"
+VERSION = "2.4.2"
diff --git a/pyproject.toml b/pyproject.toml
index 558a6f2a..728472a4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "mqtt-io"
-version = "2.4.1"
+version = "2.4.2"
 description = "Expose GPIO modules (Raspberry Pi, Beaglebone, PCF8754, PiFace2 etc.), digital sensors (LM75 etc.) and serial streams to an MQTT server for remote control and monitoring."
 readme = "README.md"
 authors = ["Ellis Percival <mqtt-io@failcode.co.uk>"]
diff --git a/setup.cfg b/setup.cfg
index 00b791aa..5d0530c1 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,9 +1,10 @@
 [bumpversion]
-current_version = 2.4.1
+current_version = 2.4.2
 commit = True
 tag = True
 tag_name = {new_version}
 message = Bump version to {new_version}
 
 [bumpversion:file:pyproject.toml]
+
 [bumpversion:file:mqtt_io/__init__.py]