diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3e85355e..4f9f5379 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,9 @@ All notable changes to this add-on will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [Unreleased]
+
+
 ## [12] - 2021-10-07
 ### Added
 - authentication/OfflineTokenRefresh.js - refresh oauth2 offline tokens
@@ -140,6 +143,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 - First packaged version
 
+[Unreleased]: https://github.com/zaproxy/community-scripts/compare/v12...HEAD
 [12]: https://github.com/zaproxy/community-scripts/compare/v11...v12
 [11]: https://github.com/zaproxy/community-scripts/compare/v10...v11
 [10]: https://github.com/zaproxy/community-scripts/compare/v9...v10
diff --git a/gradle.properties b/gradle.properties
index d4e46f5b..64c21377 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,2 +1,2 @@
-version=12
-release=true
+version=13
+release=false