diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 6e485a00..8e039039 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -2,6 +2,10 @@
 CHANGELOG
 =========
 
+2.4.1
+==========
+* bugfix: Middlewares should create subsegments only when in the Lambda context running under a Lambda environment. `PR139 <https://github.com/aws/aws-xray-sdk-python/pull/139>`_.
+
 2.4.0
 ==========
 * feature: Add ability to enable/disable the SDK. `PR119 <https://github.com/aws/aws-xray-sdk-python/pull/119>`_.
diff --git a/aws_xray_sdk/version.py b/aws_xray_sdk/version.py
index 62593941..7bdfe7df 100644
--- a/aws_xray_sdk/version.py
+++ b/aws_xray_sdk/version.py
@@ -1 +1 @@
-VERSION = '2.4.0'
+VERSION = '2.4.1'
diff --git a/docs/conf.py b/docs/conf.py
index ab150859..a6360e14 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -62,9 +62,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = u'2.4.0'
+version = u'2.4.1'
 # The full version, including alpha/beta/rc tags.
-release = u'2.4.0'
+release = u'2.4.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.