diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0cea40d..8734d8c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,11 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
-## [Unreleased]
+## [0.5.3] - 2021-06-21
+
+### Added
+
+- Add command to repair notifications and properly handle mail sending … - [#333](https://github.com/owncloud/notifications/issues/333)
 
 ## [0.5.2] - 2020-07-15
 
@@ -49,7 +53,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Move OCS calls to app framework - consumes less resources - [#98](https://github.com/owncloud/notifications/pull/98)
 - Don't use escaped message for browser notification - [#100](https://github.com/owncloud/notifications/pull/100)
 
-[Unreleased]: https://github.com/owncloud/notifications/compare/v0.5.2...master
+[0.5.3]: https://github.com/owncloud/notifications/compare/v0.5.2...v0.5.3
 [0.5.2]: https://github.com/owncloud/notifications/compare/v0.5.0...v0.5.2
 [0.5.0]: https://github.com/owncloud/notifications/compare/v0.4.1...v0.5.0
 [0.4.1]: https://github.com/owncloud/notifications/compare/v0.4.0...v0.4.1
diff --git a/appinfo/info.xml b/appinfo/info.xml
index 05fe7dd..b76d371 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -10,7 +10,7 @@
 
 	<licence>AGPL</licence>
 	<author>Joas Schilling, Thomas Müller</author>
-	<version>0.5.2</version>
+	<version>0.5.3</version>
 
 	<types>
 		<logging/>
diff --git a/sonar-project.properties b/sonar-project.properties
index c68c08a..9ed8c77 100644
--- a/sonar-project.properties
+++ b/sonar-project.properties
@@ -1,7 +1,7 @@
 # Organization and project keys are displayed in the right sidebar of the project homepage
 sonar.organization=owncloud-1
 sonar.projectKey=owncloud_notifications
-sonar.projectVersion=1.0
+sonar.projectVersion=0.5.3
 sonar.host.url=https://sonarcloud.io
 
 # =====================================================