diff --git a/docs/changelog.rst b/docs/changelog.rst
index c5b2e66..34904e2 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -5,6 +5,12 @@ _
 ---------
 
 
+v0.41
+~~~~~
+
+* Fixed ``JSendMixin`` hanging if auto_finish was disabled
+
+
 v0.40 - Replace ``apid`` with parameterized ``schema.validate``
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
diff --git a/tornado_json/__init__.py b/tornado_json/__init__.py
index 0680b03..d2fbe28 100644
--- a/tornado_json/__init__.py
+++ b/tornado_json/__init__.py
@@ -5,4 +5,4 @@
 # Alternatively, just put the version in a text file or something to avoid
 #   this.
 
-__version__ = '0.40'
+__version__ = '0.41'