diff --git a/CHANGELOG b/CHANGELOG
index 57e7ca2..2f224b2 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -8,6 +8,17 @@ The format is based on `Keep a Changelog <https://keepachangelog.com/en/1.0.0/>`
 and this project adheres to `Semantic Versioning <https://semver.org/spec/v2.0.0.html>`_.
 
 
+`0.5.2`_ (2020-01-13)
+---------------------
+.. _0.5.2: https://github.com/prashnts/pybloomfiltermmap3/releases/tag/0.5.2
+
+Changes
+^^^^^^^
+- Python setup will now always try to use and build from Cython, if the module is available in the current environment.
+  To force cythonize, use "--cython". If the module is not available and no "--cython" was used, the setup
+  will look for a bundled Cython source.
+
+
 `0.5.1`_ (2019-12-31)
 ---------------------
 .. _0.5.1: https://github.com/prashnts/pybloomfiltermmap3/releases/tag/0.5.1
diff --git a/docs/conf.py b/docs/conf.py
index 7fdd119..b52191b 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -22,7 +22,7 @@
 author = 'Michael Axiak, Prashant Sinha, Vytautas Mizgiris and others'
 
 # The full version, including alpha/beta/rc tags
-release = '0.5.1'
+release = '0.5.2'
 version = 'latest'
 
 
diff --git a/setup.py b/setup.py
index 402d839..5cc983d 100644
--- a/setup.py
+++ b/setup.py
@@ -57,7 +57,7 @@
 
 setup(
     name="pybloomfiltermmap3",
-    version="0.5.1",
+    version="0.5.2",
     author="Prashant Sinha",
     author_email="prashant@noop.pw",
     url="https://github.com/prashnts/pybloomfiltermmap3",