diff --git a/CHANGELOG.md b/CHANGELOG.md
index da263773ca..cf921670bf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.22.1 - 2018-08-01
+## Fixed
+- Raise a more informative error if a non JSON serializable value is returned from a callback [#273](https://github.com/plotly/dash/pull/273)
+
 ## 0.22.0 - 2018-07-25
 ## Added
 - Assets files & index customization [#286](https://github.com/plotly/dash/pull/286)
diff --git a/dash/version.py b/dash/version.py
index 81edede8b4..66d9d1e396 100644
--- a/dash/version.py
+++ b/dash/version.py
@@ -1 +1 @@
-__version__ = '0.22.0'
+__version__ = '0.22.1'