diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 75a11b66..923e039d 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -3,10 +3,10 @@
 History
 -------
 
-4.6.1 (unreleased)
+4.6.1 (2021-08-29)
 ------------------
 
-- Nothing changed yet.
+- Fix B3Codec's trace_id zero-padding for 32bit IDs (#322) -- mizhexiaoxiao
 
 
 4.6.0 (2021-07-16)
diff --git a/jaeger_client/__init__.py b/jaeger_client/__init__.py
index 84e6a51e..0a3521d1 100644
--- a/jaeger_client/__init__.py
+++ b/jaeger_client/__init__.py
@@ -14,7 +14,7 @@
 
 from __future__ import absolute_import
 
-__version__ = '4.6.1.dev0'
+__version__ = '4.6.1'
 
 from .tracer import Tracer  # noqa
 from .config import Config  # noqa