diff --git a/CHANGES b/CHANGES
index 707d77c..ae19606 100644
--- a/CHANGES
+++ b/CHANGES
@@ -3,6 +3,14 @@ Zask Changelog
 
 Here you can see the full list of changes between each Zask release.
 
+Version 1.9.4
+-------------
+
+released on August 16th 2016
+
+* Fixed a bug that prevents Exceptions from properly propagating when there is no started_at in the event header
+
+
 Version 1.9.3
 -------------
 
diff --git a/zask/__init__.py b/zask/__init__.py
index ee3e981..b717c8d 100644
--- a/zask/__init__.py
+++ b/zask/__init__.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-__version__ = '1.9.3'
+__version__ = '1.9.4'
 
 import gevent
 from gevent.local import local