diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 5bf2d810..6e9a9229 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -7,6 +7,13 @@ All notable changes to this project will be documented in this file.
 The format is based on `Keep a Changelog <https://keepachangelog.com/en/1.0.0/>`_,
 and this project adheres to `Semantic Versioning <https://semver.org/spec/v2.0.0.html>`_.
 
+`0.19.4`_ (2022-11-06)
+======================
+
+Fixed
+-----
+* Fixed ``TypeError`` in WinRT backend introduced in v0.19.3.
+
 
 `0.19.3`_ (2022-11-06)
 ======================
@@ -865,7 +872,8 @@ Fixed
 * Bleak created.
 
 
-.. _Unreleased: https://github.com/hbldh/bleak/compare/v0.19.3...develop
+.. _Unreleased: https://github.com/hbldh/bleak/compare/v0.19.4...develop
+.. _0.19.4: https://github.com/hbldh/bleak/compare/v0.19.3...v0.19.4
 .. _0.19.3: https://github.com/hbldh/bleak/compare/v0.19.2...v0.19.3
 .. _0.19.2: https://github.com/hbldh/bleak/compare/v0.19.1...v0.19.2
 .. _0.19.1: https://github.com/hbldh/bleak/compare/v0.19.0...v0.19.1
diff --git a/bleak/backends/winrt/client.py b/bleak/backends/winrt/client.py
index 5121756b..496de89b 100644
--- a/bleak/backends/winrt/client.py
+++ b/bleak/backends/winrt/client.py
@@ -376,7 +376,7 @@ def max_pdu_size_changed_handler(sender: GattSession, args):
 
                 try:
                     # wait for the session to become active
-                    async with async_timeout(timeout):
+                    async with async_timeout.timeout(timeout):
                         await asyncio.gather(wait_connect_task, wait_get_services_task)
 
                 finally:
diff --git a/pyproject.toml b/pyproject.toml
index 89c9de6d..3398e79e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "bleak"
-version = "0.19.3"
+version = "0.19.4"
 description = "Bluetooth Low Energy platform Agnostic Klient"
 authors = ["Henrik Blidh <henrik.blidh@nedomkull.com>"]
 license = "MIT"