diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7ea9266..69c0b67 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.12.3](https://github.com/googleapis/python-os-config/compare/v1.12.2...v1.12.3) (2022-09-29)
+
+
+### Bug Fixes
+
+* **deps:** Require protobuf >= 3.20.2 ([#243](https://github.com/googleapis/python-os-config/issues/243)) ([73c75aa](https://github.com/googleapis/python-os-config/commit/73c75aa2a64e2accb6093dd8b5011370fb02bfe4))
+
 ## [1.12.2](https://github.com/googleapis/python-os-config/compare/v1.12.1...v1.12.2) (2022-08-11)
 
 
diff --git a/setup.py b/setup.py
index 04a594b..ff3d685 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,7 @@
 
 name = "google-cloud-os-config"
 description = "Google Cloud OS Config API client library"
-version = "1.12.2"
+version = "1.12.3"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'