diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92046f0..de0ed4f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 <!--next-version-placeholder-->
 
+## v0.4.0 (2022-08-24)
+### Feature
+* Add support for Lee Guitars Thermo-Hygrometer and passive ([#12](https://github.com/Bluetooth-Devices/qingping-ble/issues/12)) ([`1d02826`](https://github.com/Bluetooth-Devices/qingping-ble/commit/1d028267bf8c441d7e64a0b671d7d2b5444b62ac))
+
 ## v0.3.0 (2022-08-21)
 ### Feature
 * Add BT Clock Lite ([#11](https://github.com/Bluetooth-Devices/qingping-ble/issues/11)) ([`a0fcedf`](https://github.com/Bluetooth-Devices/qingping-ble/commit/a0fcedf8670c34d0893726bdc3e8f3b781cd8d60))
diff --git a/pyproject.toml b/pyproject.toml
index 3ea131f..0cf0fd3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "qingping-ble"
-version = "0.3.0"
+version = "0.4.0"
 description = "Qingping BLE support"
 authors = ["J. Nick Koston <nick@koston.org>"]
 license = "MIT"
diff --git a/src/qingping_ble/__init__.py b/src/qingping_ble/__init__.py
index de5d236..17aef8c 100644
--- a/src/qingping_ble/__init__.py
+++ b/src/qingping_ble/__init__.py
@@ -15,7 +15,7 @@
 
 from .parser import QingpingBluetoothDeviceData
 
-__version__ = "0.3.0"
+__version__ = "0.4.0"
 
 __all__ = [
     "QingpingBluetoothDeviceData",