diff --git a/CHANGELOG.md b/CHANGELOG.md
index d5bdcc0..ee45ec9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## v0.5.1 (2014-12-27)
+- Remove installation dependency on cython. We now have no dependencies since libcapnp will automatically build as well.
+
+
 ## v0.5.0 (2014-12-15)
 - Timer class `capnp.getTimer()`
 - pycapnp is now thread-safe and allows an event loop to be run in each thread
diff --git a/setup.py b/setup.py
index b0c88c6..ac46c13 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ _this_dir = os.path.dirname(__file__)
 
 MAJOR = 0
 MINOR = 5
-MICRO = 0
+MICRO = 1
 VERSION = '%d.%d.%d' % (MAJOR, MINOR, MICRO)