diff --git a/cluster_tools/Changelog.md b/cluster_tools/Changelog.md
index 12b3f688e..6d91b1042 100644
--- a/cluster_tools/Changelog.md
+++ b/cluster_tools/Changelog.md
@@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/) `MAJOR.MIN
 For upgrade instructions, please check the respective *Breaking Changes* sections.
 
 ## Unreleased
-[Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.20...HEAD)
+[Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.21...HEAD)
 
 ### Breaking Changes
 
@@ -18,6 +18,10 @@ For upgrade instructions, please check the respective *Breaking Changes* section
 ### Fixed
 
 
+## [0.9.21](https://github.com/scalableminds/webknossos-libs/releases/tag/v0.9.21) - 2022-04-20
+[Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.20...v0.9.21)
+
+
 ## [0.9.20](https://github.com/scalableminds/webknossos-libs/releases/tag/v0.9.20) - 2022-04-20
 [Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.19...v0.9.20)
 
diff --git a/webknossos/Changelog.md b/webknossos/Changelog.md
index 5dc8cd3f1..4ffd998a1 100644
--- a/webknossos/Changelog.md
+++ b/webknossos/Changelog.md
@@ -10,7 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/) `MAJOR.MIN
 For upgrade instructions, please check the respective *Breaking Changes* sections.
 
 ## Unreleased
-[Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.20...HEAD)
+[Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.21...HEAD)
 
 ### Breaking Changes
 
@@ -21,6 +21,10 @@ For upgrade instructions, please check the respective *Breaking Changes* section
 ### Fixed
 
 
+## [0.9.21](https://github.com/scalableminds/webknossos-libs/releases/tag/v0.9.21) - 2022-04-20
+[Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.20...v0.9.21)
+
+
 ## [0.9.20](https://github.com/scalableminds/webknossos-libs/releases/tag/v0.9.20) - 2022-04-20
 [Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.19...v0.9.20)
 
diff --git a/wkcuber/Changelog.md b/wkcuber/Changelog.md
index 237a1aced..b88a7435c 100644
--- a/wkcuber/Changelog.md
+++ b/wkcuber/Changelog.md
@@ -7,7 +7,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/) `MAJOR.MIN
 For upgrade instructions, please check the respective *Breaking Changes* sections.
 
 ## Unreleased
-[Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.20...HEAD)
+[Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.21...HEAD)
 
 ### Breaking Changes
 
@@ -18,6 +18,10 @@ For upgrade instructions, please check the respective *Breaking Changes* section
 ### Fixed
 
 
+## [0.9.21](https://github.com/scalableminds/webknossos-libs/releases/tag/v0.9.21) - 2022-04-20
+[Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.20...v0.9.21)
+
+
 ## [0.9.20](https://github.com/scalableminds/webknossos-libs/releases/tag/v0.9.20) - 2022-04-20
 [Commits](https://github.com/scalableminds/webknossos-libs/compare/v0.9.19...v0.9.20)