diff --git a/packages/google-cloud-billing/CHANGELOG.md b/packages/google-cloud-billing/CHANGELOG.md
index d8c1121dd873..2bc95ac35063 100644
--- a/packages/google-cloud-billing/CHANGELOG.md
+++ b/packages/google-cloud-billing/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+### [1.3.1](https://www.github.com/googleapis/python-billing/compare/v1.3.0...v1.3.1) (2021-07-20)
+
+
+### Bug Fixes
+
+* **deps:** pin 'google-{api,cloud}-core', 'google-auth' to allow 2.x versions ([#96](https://www.github.com/googleapis/python-billing/issues/96)) ([a9e5368](https://www.github.com/googleapis/python-billing/commit/a9e536849aea8fe4ba513cd5503c275c4a7db880))
+
 ## [1.3.0](https://www.github.com/googleapis/python-billing/compare/v1.2.1...v1.3.0) (2021-07-01)
 
 
diff --git a/packages/google-cloud-billing/setup.py b/packages/google-cloud-billing/setup.py
index 722d01450cc1..7f2f4f894d2b 100644
--- a/packages/google-cloud-billing/setup.py
+++ b/packages/google-cloud-billing/setup.py
@@ -19,7 +19,7 @@
 import os
 import setuptools  # type: ignore
 
-version = "1.3.0"
+version = "1.3.1"
 
 package_root = os.path.abspath(os.path.dirname(__file__))