diff --git a/CHANGELOG.md b/CHANGELOG.md
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+# Change Log
+
+## Version 0.1.3 (08/27/2021)
+
+### Changed
+- Migrated from Travis CI to GitHub Actions (#127).
+- Made `--map-as-rank` default when only mapping file(s) are provided (#132).
+- Renamed `--normalize|-z` as `--frac|-f` (#128).
+- Modified core algorithm which slightly improved performance (#124).
+
+### Added
+- Added `tool normalize` command, with multiple features (#124).
+- Added the feature to collapse a stratified table (#126).
+- Created an WoL FTP server, and added link to it (#118).
+- Added an WoL standard operating procedure (`wolsop.sh`) and documentation (#116).
+- Added first [citation](https://www.biorxiv.org/content/10.1101/2021.04.04.438427v1.abstract) of Woltka (#111).
+- Added protocols for Bowtie2 / SHOGUN and Fastp (#121).
+- Added discussion about mapping uniqueness (#131).
+
+### Fixed
+- Fixed free-rank classification subject not found issue (#120).
+- Corrected paths to example files and directories (#117).
+
+
+## Version 0.1.2 (03/31/2021)
+
+### Changed
+- Updated Qiita documentation (#107).
+- Renamed "gOTU" with "OGU" (#104).
+
+### Added
+- Published at PyPI. Can be installed by `pip install woltka` (#108).
+- Added instructions for using MetaCyc and KEGG (#99, #101).
+- Added `tool collapse` command, which supports one-to-many classification (#99).
+
+### Fixed
+- Fixed Handling of zero length alignment (#105).
+
+
+## Version 0.1.1 (02/17/2021)
+
+### Added
+- First official release.
+
diff --git a/woltka/__init__.py b/woltka/__init__.py
index 98f5557..2b72289 100644
--- a/woltka/__init__.py
+++ b/woltka/__init__.py
@@ -10,7 +10,7 @@
 
 __name__ = 'woltka'
 __description__ = 'Web of Life ToolKit App'
-__version__ = '0.1.2'
+__version__ = '0.1.3'
 __license__ = 'BSD-3-Clause'
 __author__ = 'Qiyun Zhu'
 __email__ = 'qiyunzhu@gmail.com'