diff --git a/CHANGELOG.md b/CHANGELOG.md
index a9b8280..09b72de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+* Version 2.5.1 - 03/03/2019
+    * Fix handling of naive/aware datetime objects when packing the timestamp extension type.
+    * Add handling for short reads during file object unpacking.
+    * Make Ext base class a new-style object for cleaner inheritance in Python 2.
+    * Improve length comparisons and instance checks for minor performance improvement.
+    * Contributors
+        * Gabe Appleton, @gappleto97 - 28907ba, 76751f3, 7a9b717
+        * DisposaBoy, @DisposaBoy - 50b1dd3
+
 * Version 2.5.0 - 03/31/2018
     * Add support for the timestamp extension type.
     * Fix tests on big endian platforms
diff --git a/setup.py b/setup.py
index 84a1223..4173c8e 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name='u-msgpack-python',
-    version='2.5.0',
+    version='2.5.1',
     description='A portable, lightweight MessagePack serializer and deserializer written in pure Python.',
     author='vsergeev',
     author_email='v@sergeev.io',
diff --git a/umsgpack.py b/umsgpack.py
index 09f2b29..deafcc7 100644
--- a/umsgpack.py
+++ b/umsgpack.py
@@ -1,4 +1,4 @@
-# u-msgpack-python v2.5.0 - v at sergeev.io
+# u-msgpack-python v2.5.1 - v at sergeev.io
 # https://github.com/vsergeev/u-msgpack-python
 #
 # u-msgpack-python is a lightweight MessagePack serializer and deserializer
@@ -31,7 +31,7 @@
 # THE SOFTWARE.
 #
 """
-u-msgpack-python v2.5.0 - v at sergeev.io
+u-msgpack-python v2.5.1 - v at sergeev.io
 https://github.com/vsergeev/u-msgpack-python
 
 u-msgpack-python is a lightweight MessagePack serializer and deserializer
@@ -49,10 +49,10 @@
 import sys
 import io
 
-__version__ = "2.5.0"
+__version__ = "2.5.1"
 "Module version string"
 
-version = (2, 5, 0)
+version = (2, 5, 1)
 "Module version tuple"