diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74aad49..fe1573e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 <!--next-version-placeholder-->
 
+## v0.4.0 (2023-01-24)
+### Feature
+* Express reading quality as a percentage ([#4](https://github.com/Bluetooth-Devices/mopeka-iot-ble/issues/4)) ([`1f26c88`](https://github.com/Bluetooth-Devices/mopeka-iot-ble/commit/1f26c88181963710aa7d427333536fb79236cfe6))
+
 ## v0.3.0 (2023-01-24)
 ### Feature
 * Add support for the check device ([#3](https://github.com/Bluetooth-Devices/mopeka-iot-ble/issues/3)) ([`7637c02`](https://github.com/Bluetooth-Devices/mopeka-iot-ble/commit/7637c0237002e6325c6cc9c5d1ba45776b6760cc))
diff --git a/pyproject.toml b/pyproject.toml
index 187f0dc..5f6f8a4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "mopeka-iot-ble"
-version = "0.3.0"
+version = "0.4.0"
 description = "Mopeka IOT BLE Parser"
 authors = ["J. Nick Koston <bluetooth@koston.org>"]
 license = "MIT"
diff --git a/src/mopeka_iot_ble/__init__.py b/src/mopeka_iot_ble/__init__.py
index 9eac202..0b7d91b 100644
--- a/src/mopeka_iot_ble/__init__.py
+++ b/src/mopeka_iot_ble/__init__.py
@@ -23,7 +23,7 @@
 
 from .parser import MopekaIOTBluetoothDeviceData
 
-__version__ = "0.3.0"
+__version__ = "0.4.0"
 
 __all__ = [
     "MopekaIOTBluetoothDeviceData",