diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2448ce3..94be231 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,18 @@
+## v0.2.3
+
+ - support new versions of carbon (PR#74 @wdauchy)
+ - lock whisper files during carbon-sync and whisper-fill (PR#48 @fillipog, PR#71 @deniszh)
+ - Fixes and optimizations for carbonate (PR#68 @iksaif, PR#70 @deniszh)
+ - Make the heal process resilient (PR#42 @jjneely, PR#69 @deniszh)
+ - Add option to follow symlinks (PR#65 @tmak0)
+ - Do not overwrite target WSP file if source is corrupt (PR#52 @jjneely)
+ - 'carbon-stale' tool to help find metrics with blank/missing data (PR#30 @bitprophet)
+ - remove shebang, not a cli script (PR#55 @piotr1212)
+ - mention environment variables in README.md (PR#53 @fillipog)
+ - Fixup badge link in readme (PR#66 @dozoisch)
+ - Add dirty mode for sync (PR#39 @iksaif)
+ - Read config-file and cluster options from environ (PR#49 @fillipog)
+
 ## v0.2.2
 
 - Load `/opt/graphite/lib` into python's path when executing any binstubs
diff --git a/carbonate/__init__.py b/carbonate/__init__.py
index e6a8263..f047094 100644
--- a/carbonate/__init__.py
+++ b/carbonate/__init__.py
@@ -2,7 +2,7 @@
 Tools for managing a federated Carbon cluster.
 """
 
-__version_info__ = ('0', '2', '2')
+__version_info__ = ('0', '2', '3')
 __version__ = '.'.join(__version_info__)
 
 
diff --git a/tests/requirements.txt b/tests/requirements.txt
index f0f1e73..f5d6655 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -3,7 +3,7 @@ mock
 coverage
 nosexcover
 flake8
-mccabe==0.5.3
+mccabe==0.6.1
 tox
 pep8
-pyflakes==1.3.0
+pyflakes==1.5.0