diff --git a/CHANGELOG.md b/CHANGELOG.md
index 66513e5..4f8024d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.4.3](https://github.com/googleapis/python-notebooks/compare/v1.4.2...v1.4.3) (2022-09-29)
+
+
+### Bug Fixes
+
+* **deps:** Require protobuf >= 3.20.2 ([#204](https://github.com/googleapis/python-notebooks/issues/204)) ([cd70311](https://github.com/googleapis/python-notebooks/commit/cd703119de83770eccc1cae4c6f5b68ca43fe419))
+
 ## [1.4.2](https://github.com/googleapis/python-notebooks/compare/v1.4.1...v1.4.2) (2022-08-11)
 
 
diff --git a/setup.py b/setup.py
index 5ea220f..e8f3c80 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@
 
 import setuptools  # type: ignore
 
-version = "1.4.2"
+version = "1.4.3"
 
 package_root = os.path.abspath(os.path.dirname(__file__))