diff --git a/README.md b/README.md
index 7273895c..eb7781e7 100644
--- a/README.md
+++ b/README.md
@@ -1007,10 +1007,10 @@ SOFTWARE.
 [unifi-armhf-shield]: https://img.shields.io/badge/armhf-no-red.svg
 [unifi-armv7-shield]: https://img.shields.io/badge/armv7-no-red.svg
 [unifi-i386-shield]: https://img.shields.io/badge/i386-no-red.svg
-[addon-uptime-kuma]: https://github.com/hassio-addons/addon-uptime-kuma/tree/v0.3.2
-[addon-doc-uptime-kuma]: https://github.com/hassio-addons/addon-uptime-kuma/blob/v0.3.2/README.md
+[addon-uptime-kuma]: https://github.com/hassio-addons/addon-uptime-kuma/tree/v0.4.0
+[addon-doc-uptime-kuma]: https://github.com/hassio-addons/addon-uptime-kuma/blob/v0.4.0/README.md
 [uptime-kuma-issue]: https://github.com/hassio-addons/addon-uptime-kuma/issues
-[uptime-kuma-version-shield]: https://img.shields.io/badge/version-v0.3.2-blue.svg
+[uptime-kuma-version-shield]: https://img.shields.io/badge/version-v0.4.0-blue.svg
 [uptime-kuma-aarch64-shield]: https://img.shields.io/badge/aarch64-yes-green.svg
 [uptime-kuma-amd64-shield]: https://img.shields.io/badge/amd64-yes-green.svg
 [uptime-kuma-armhf-shield]: https://img.shields.io/badge/armhf-yes-green.svg
diff --git a/uptime-kuma/CHANGELOG.md b/uptime-kuma/CHANGELOG.md
index c7810b9e..fee3dff6 100644
--- a/uptime-kuma/CHANGELOG.md
+++ b/uptime-kuma/CHANGELOG.md
@@ -1,6 +1,13 @@
 ## What’s changed
 
+## 🐛 Bug fixes
+
+- 🚑 Fix MQTT notifications @frenck (#31)
+
+## 🧰 Maintenance
+
+- 🔨 Migrate old-style base scripts s6-rc @frenck (#30)
+
 ## ⬆️ Dependency updates
 
-- ⬆️ Upgrades add-on base image to 12.2.7 @frenck (#24)
-- ⬆️ Bump apprise from 1.1.0 to 1.2.0 in /uptime-kuma @dependabot (#23)
+- ⬆️ Upgrades add-on base image to 13.0.0 @frenck (#29)
diff --git a/uptime-kuma/README.md b/uptime-kuma/README.md
index 98cb03e9..53c8f907 100644
--- a/uptime-kuma/README.md
+++ b/uptime-kuma/README.md
@@ -45,5 +45,5 @@ If you are more interested in stable releases of our add-ons:
 [patreon-shield]: https://frenck.dev/wp-content/uploads/2019/12/patreon.png
 [patreon]: https://www.patreon.com/frenck
 [project-stage-shield]: https://img.shields.io/badge/project%20stage-production%20ready-brightgreen.svg
-[release-shield]: https://img.shields.io/badge/version-v0.3.2-blue.svg
-[release]: https://github.com/hassio-addons/addon-uptime-kuma/tree/v0.3.2
\ No newline at end of file
+[release-shield]: https://img.shields.io/badge/version-v0.4.0-blue.svg
+[release]: https://github.com/hassio-addons/addon-uptime-kuma/tree/v0.4.0
\ No newline at end of file
diff --git a/uptime-kuma/config.yaml b/uptime-kuma/config.yaml
index 4d0da34d..c87b2850 100644
--- a/uptime-kuma/config.yaml
+++ b/uptime-kuma/config.yaml
@@ -15,5 +15,5 @@ ports_description:
   3001/tcp: Web interface
 slug: uptime-kuma
 url: https://github.com/hassio-addons/addon-uptime-kuma
-version: 0.3.2
+version: 0.4.0
 webui: http://[HOST]:[PORT:3001]