diff --git a/CHANGELOG.md b/CHANGELOG.md
index cdc2c012d8..6759a67319 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,6 @@
-## [Unreleased](https://github.com/gravitystorm/openstreetmap-carto/compare/v4.20.0...master)
+## [Unreleased](https://github.com/gravitystorm/openstreetmap-carto/compare/v4.21.0...master)
+
+## [v4.21.0](https://github.com/gravitystorm/openstreetmap-carto/compare/v4.20.0...v4.21.0)
 ## Major changes
 - Removed unused `world_boundaries-spherical.tgz` file from scripts