diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 8212170..9a33bfc 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,17 @@
 Changelog
 =========
 
+v1.6.3
+------
+
+02-15-2019 9:31 PST
+
+Implementation Changes
++++++++++++++
+
+- follow rfc 7515 : strip padding from JWS segments #324 (`#324 <https://github.com/googleapis/google-auth-library-python/pull/324>`_)
+- Add retry to _metadata.ping() (`#323 <https://github.com/googleapis/google-auth-library-python/pull/323>`_)
+
 v1.6.2
 ------
 
diff --git a/setup.py b/setup.py
index ef9bb51..b2eb598 100644
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@
 
 setup(
     name='google-auth',
-    version='1.6.2',
+    version='1.6.3',
     author='Google Cloud Platform',
     author_email='jonwayne+google-auth@google.com',
     description='Google Authentication Library',