diff --git a/mqtt_io/__init__.py b/mqtt_io/__init__.py
index 255c44e6..16d54bac 100644
--- a/mqtt_io/__init__.py
+++ b/mqtt_io/__init__.py
@@ -2,4 +2,4 @@
 Top level of MQTT IO package.
 """
 
-VERSION = "2.4.2"
+VERSION = "2.4.3"
diff --git a/pyproject.toml b/pyproject.toml
index 728472a4..c94c4e36 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "mqtt-io"
-version = "2.4.2"
+version = "2.4.3"
 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 b73b57c2..9bdba722 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,9 +1,10 @@
 [bumpversion]
-current_version = 2.4.2
+current_version = 2.4.3
 commit = True
 tag = True
 tag_name = {new_version}
 message = Bump version to {new_version}
 
 [bumpversion:file:pyproject.toml]
+
 [bumpversion:file:mqtt_io/__init__.py]