diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c71f17e..ede42bdd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,18 @@
 
 [1]: https://pypi.org/project/google-cloud-monitoring/#history
 
+## [2.4.0](https://www.github.com/googleapis/python-monitoring/compare/v2.3.0...v2.4.0) (2021-06-26)
+
+
+### Features
+
+* add always_use_jwt_access ([#165](https://www.github.com/googleapis/python-monitoring/issues/165)) ([064f1e0](https://www.github.com/googleapis/python-monitoring/commit/064f1e0a8df02c04bdae6b13c645f2b399c2c1ef))
+
+
+### Documentation
+
+* omit mention of Python 2.7 in 'CONTRIBUTING.rst' ([#1127](https://www.github.com/googleapis/python-monitoring/issues/1127)) ([#159](https://www.github.com/googleapis/python-monitoring/issues/159)) ([adc82c9](https://www.github.com/googleapis/python-monitoring/commit/adc82c9d1812fb0efe00cbfa09f19e8c04277881)), closes [#1126](https://www.github.com/googleapis/python-monitoring/issues/1126)
+
 ## [2.3.0](https://www.github.com/googleapis/python-monitoring/compare/v2.2.1...v2.3.0) (2021-06-18)
 
 
diff --git a/setup.py b/setup.py
index 4ebadff8..96816f53 100644
--- a/setup.py
+++ b/setup.py
@@ -22,7 +22,7 @@
 
 name = "google-cloud-monitoring"
 description = "Stackdriver Monitoring API client library"
-version = "2.3.0"
+version = "2.4.0"
 # Should be one of:
 # 'Development Status :: 3 - Alpha'
 # 'Development Status :: 4 - Beta'