diff --git a/CHANGELOG.md b/CHANGELOG.md
index 901e0162..8df7d4e0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [1.21.1](https://github.com/googleapis/proto-plus-python/compare/v1.21.0...v1.21.1) (2022-08-10)
+
+
+### Bug Fixes
+
+* Fix Timestamp, Duration and FieldMask marshaling in REST transport ([#334](https://github.com/googleapis/proto-plus-python/issues/334)) ([a2e7300](https://github.com/googleapis/proto-plus-python/commit/a2e7300368625ceec39dd2c2dfb96291ad8cf1f1))
+* fixes bug in the test. ([#332](https://github.com/googleapis/proto-plus-python/issues/332)) ([f85f470](https://github.com/googleapis/proto-plus-python/commit/f85f470c880a7bff7f3c813d33d15e657e7b5123))
+
 ## [1.20.6](https://github.com/googleapis/proto-plus-python/compare/v1.20.5...v1.20.6) (2022-06-13)
 
 
diff --git a/setup.py b/setup.py
index e427e582..84d78912 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
 
 from setuptools import find_packages, setup
 
-version = "1.20.6"
+version = "1.21.1"
 
 PACKAGE_ROOT = os.path.abspath(os.path.dirname(__file__))