diff --git a/CHANGELOG.md b/CHANGELOG.md
index f1a40094..17286864 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog 1.0.0].
 
 ## Unreleased
 
+## [Release 21.0.0]
+
 - **Breaking:** `Client.get_pending_enrichment_for_version` now requires both a target enrichment version and a target parser version, and will not include documents which have not been parsed with the target version.
 - **Feature:** Add accessors for judgment jurisdiction
 
@@ -373,8 +375,9 @@ The format is based on [Keep a Changelog 1.0.0].
 ## [Release 1.0.5]
 - Initial tagged release
 
-[Unreleased]: https://github.com/nationalarchives/ds-caselaw-custom-api-client/compare/v20.0.0...HEAD
-[Release 19.1.0]: https://github.com/nationalarchives/ds-caselaw-custom-api-client/compare/v19.1.0...v20.0.0
+[Unreleased]: https://github.com/nationalarchives/ds-caselaw-custom-api-client/compare/v21.0.0...HEAD
+[Release 21.0.0]: https://github.com/nationalarchives/ds-caselaw-custom-api-client/compare/v20.0.0...v21.0.0
+[Release 20.0.0]: https://github.com/nationalarchives/ds-caselaw-custom-api-client/compare/v19.1.0...v20.0.0
 [Release 19.1.0]: https://github.com/nationalarchives/ds-caselaw-custom-api-client/compare/v19.0.0...v19.1.0
 [Release 19.0.0]: https://github.com/nationalarchives/ds-caselaw-custom-api-client/compare/v18.0.0...v19.0.0
 [Release 18.0.0]: https://github.com/nationalarchives/ds-caselaw-custom-api-client/compare/v17.3.0...v18.0.0
diff --git a/pyproject.toml b/pyproject.toml
index 8998c11e..10df22ac 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "ds-caselaw-marklogic-api-client"
-version = "20.0.0"
+version = "21.0.0"
 description = "An API client for interacting with the underlying data in Find Caselaw."
 authors = ["The National Archives"]
 homepage = "https://github.com/nationalarchives/ds-caselaw-custom-api-client"