diff --git a/.github/.OwlBot.lock.yaml b/.github/.OwlBot.lock.yaml
index 7d98291..70dcbbb 100644
--- a/.github/.OwlBot.lock.yaml
+++ b/.github/.OwlBot.lock.yaml
@@ -1,3 +1,3 @@
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-python:latest
-  digest: sha256:58f73ba196b5414782605236dd0712a73541b44ff2ff4d3a36ec41092dd6fa5b
+  digest: sha256:3f66ebf145a16bb07a2fcbdb79bcb5743a791e3dc46015b0de22cacdd2875f64
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d0591c..afd17e6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [1.3.0](https://www.github.com/googleapis/python-functions/compare/v1.2.0...v1.3.0) (2021-10-21)
+
+
+### Features
+
+* add support for python 3.10 ([#122](https://www.github.com/googleapis/python-functions/issues/122)) ([f7ceeeb](https://www.github.com/googleapis/python-functions/commit/f7ceeebc09d826394f9bb225a823ec504161ac1f))
+
 ## [1.2.0](https://www.github.com/googleapis/python-functions/compare/v1.1.1...v1.2.0) (2021-10-08)
 
 
diff --git a/docs/index.rst b/docs/index.rst
index d28551a..7537b90 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -2,6 +2,7 @@
 
 .. include:: multiprocessing.rst
 
+
 API Reference
 -------------
 .. toctree::
@@ -10,12 +11,13 @@ API Reference
     functions_v1/services
     functions_v1/types
 
+
 Changelog
 ---------
 
 For a list of all ``google-cloud-functions`` releases:
 
 .. toctree::
-   :maxdepth: 2
+    :maxdepth: 2
 
-   changelog
+    changelog
diff --git a/noxfile.py b/noxfile.py
index 672b28d..2bb4cf7 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -175,7 +175,7 @@ def cover(session):
     test runs (not system test runs), and then erases coverage data.
     """
     session.install("coverage", "pytest-cov")
-    session.run("coverage", "report", "--show-missing", "--fail-under=98")
+    session.run("coverage", "report", "--show-missing", "--fail-under=100")
 
     session.run("coverage", "erase")
 
diff --git a/owlbot.py b/owlbot.py
deleted file mode 100644
index 39e0592..0000000
--- a/owlbot.py
+++ /dev/null
@@ -1,42 +0,0 @@
-# Copyright 2020 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-"""This script is used to synthesize generated parts of this library."""
-import os
-
-import synthtool as s
-import synthtool.gcp as gcp
-from synthtool.languages import python
-
-common = gcp.CommonTemplates()
-
-default_version = "v1"
-
-for library in s.get_staging_dirs(default_version):
-    s.move(library, excludes=["setup.py", "README.rst", "docs/index.rst"])
-
-s.remove_staging_dirs()
-
-# ----------------------------------------------------------------------------
-# Add templated files
-# ----------------------------------------------------------------------------
-templated_files = common.py_library(cov_level=98, microgenerator=True)
-python.py_samples(skip_readmes=True)
-s.move(
-    templated_files, excludes=[".coveragerc"]
-)  # the microgenerator has a good coveragerc file
-
-
-s.shell.run(["nox", "-s", "blacken"], hide_output=False)
-
diff --git a/setup.py b/setup.py
index 605dbc7..7e3e87a 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@
 import os
 import setuptools  # type: ignore
 
-version = "1.2.0"
+version = "1.3.0"
 
 package_root = os.path.abspath(os.path.dirname(__file__))
 
@@ -62,6 +62,8 @@
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
         "Topic :: Internet",
         "Topic :: Software Development :: Libraries :: Python Modules",
     ],
diff --git a/testing/constraints-3.6.txt b/testing/constraints-3.6.txt
index bbc5a8c..7ee8dfc 100644
--- a/testing/constraints-3.6.txt
+++ b/testing/constraints-3.6.txt
@@ -9,3 +9,6 @@ google-api-core==1.26.0
 proto-plus==1.10.0
 grpc-google-iam-v1==0.12.3
 packaging==14.3
+# TODO: remove once google-auth>=1.25.0 is required transitively
+# through google-api-core>=1.28.0
+google-auth==1.24.0