diff --git a/CHANGELOG.md b/CHANGELOG.md
index ce933a7..b2068c0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.4.0](https://www.github.com/googleapis/python-functions/compare/v0.1.0...v0.4.0) (2020-10-02)
+
+
+### Features
+
+* release 0.4.0 ([#7](https://www.github.com/googleapis/python-functions/issues/7)) ([e4e3997](https://www.github.com/googleapis/python-functions/commit/e4e3997cca3d8bdafe04e4931e73da5e934cb769))
+
 ## 0.1.0 (2020-07-20)
 
 
diff --git a/setup.py b/setup.py
index b82ddc9..ff89512 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
 import os
 import setuptools  # type: ignore
 
-version = "0.1.0"
+version = "0.4.0"
 
 package_root = os.path.abspath(os.path.dirname(__file__))