diff --git a/CHANGELOG.md b/CHANGELOG.md
index 75a588e..b61ab90 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,10 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [0.3.1]
+* Bump EB4j@2.2.1
+* Support appendix/furoku tree beside with dictionary catalogs
+
 ## [0.3.0]
 * Add CI script
 * Add heading pane
@@ -13,6 +17,7 @@ All notable changes to this project will be documented in this file.
 ## 0.1.0
 * First release
 
-[Unreleased]: https://github.com/eb4j/ebviewer/compare/v0.3.0...HEAD
+[Unreleased]: https://github.com/eb4j/ebviewer/compare/v0.3.1...HEAD
+[0.3.1]: https://github.com/eb4j/ebviewer/compare/v0.3.0...v0.3.1
 [0.3.0]: https://github.com/eb4j/ebviewer/compare/v0.2.0...v0.3.0
 [0.2.0]: https://github.com/eb4j/ebviewer/compare/v0.1.0...v0.2.0