diff --git a/CHANGELOG.md b/CHANGELOG.md
index 891f0e2..8d756a6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 CHANGELOG for python-postmark
 ===============================
 
+Version 0.5.8
+--------------
+- Fix _send inconsistent return format (PR #106)
+
 Version 0.5.7
 --------------
 - Allow django_backend to take advantage of message_streams (PR #103)
diff --git a/postmark/__init__.py b/postmark/__init__.py
index 932959b..e13ebe4 100644
--- a/postmark/__init__.py
+++ b/postmark/__init__.py
@@ -1,4 +1,4 @@
-__version__ = '0.5.7'
+__version__ = '0.5.8'
 __author__ = "Dave Martorana (http://davemartorana.com), Richard Cooper (http://frozenskys.com), Bill Jones (oraclebill), Dmitry Golomidov (deeGraYve)"
 __date__ = '2010-April-14'
 __url__ = 'http://postmarkapp.com'