diff --git a/tools/internal_ci/helper_scripts/prepare_build_macos_rc b/tools/internal_ci/helper_scripts/prepare_build_macos_rc
index 413ed49adc3..a13c29ea7f5 100644
--- a/tools/internal_ci/helper_scripts/prepare_build_macos_rc
+++ b/tools/internal_ci/helper_scripts/prepare_build_macos_rc
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/bash -ex
 # Copyright 2017 gRPC authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -12,7 +12,6 @@
 # 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.
-
 # Source this rc script to prepare the environment for macos builds
 
 # show original open file limit values
@@ -54,9 +53,14 @@ time pip install --user virtualenv
 time pip install --user --upgrade Mako six tox setuptools twisted pyyaml pyjwt cryptography requests
 export PYTHONPATH=/Library/Python/3.4/site-packages
 
-# Install Python 3.7
+# Install Python 3.7 and Python 3.8
 time curl -O https://www.python.org/ftp/python/3.7.0/python-3.7.0-macosx10.9.pkg
+time curl -O https://www.python.org/ftp/python/3.8.0/python-3.8.0-macosx10.9.pkg
+echo "ae0717a02efea3b0eb34aadc680dc498 python-3.7.0-macosx10.9.pkg" > /tmp/python_installer_checksum.md5
+echo "f5f9ae9f416170c6355cab7256bb75b5 python-3.8.0-macosx10.9.pkg" >> /tmp/python_installer_checksum.md5
+md5sum -c /tmp/python_installer_checksum.md5
 time sudo installer -pkg ./python-3.7.0-macosx10.9.pkg -target /
+time sudo installer -pkg ./python-3.8.0-macosx10.9.pkg -target /
 
 # set xcode version for Obj-C tests
 sudo xcode-select -switch /Applications/Xcode_9.2.app/Contents/Developer/
@@ -81,3 +85,4 @@ ln -s /tmpfs/DerivedData ~/Library/Developer/Xcode/DerivedData
 
 # PHP tests currently require using an older version of PHPUnit
 ln -sf /usr/local/bin/phpunit-5.7 /usr/local/bin/phpunit
+
diff --git a/tools/internal_ci/macos/grpc_build_artifacts.sh b/tools/internal_ci/macos/grpc_build_artifacts.sh
index 7b9c5eb673d..f4a7708e71e 100755
--- a/tools/internal_ci/macos/grpc_build_artifacts.sh
+++ b/tools/internal_ci/macos/grpc_build_artifacts.sh
@@ -25,6 +25,7 @@ python2.7 -m pip install cython setuptools wheel
 python3.5 -m pip install cython setuptools wheel
 python3.6 -m pip install cython setuptools wheel
 python3.7 -m pip install cython setuptools wheel
+python3.8 -m pip install cython setuptools wheel
 
 # needed to build ruby artifacts
 time bash tools/distrib/build_ruby_environment_macos.sh
diff --git a/tools/run_tests/artifacts/artifact_targets.py b/tools/run_tests/artifacts/artifact_targets.py
index 62dd3e12f8f..0709db94696 100644
--- a/tools/run_tests/artifacts/artifact_targets.py
+++ b/tools/run_tests/artifacts/artifact_targets.py
@@ -406,8 +406,7 @@ def targets():
         PythonArtifact('macos', 'x64', 'python3.5'),
         PythonArtifact('macos', 'x64', 'python3.6'),
         PythonArtifact('macos', 'x64', 'python3.7'),
-        # TODO(https://github.com/grpc/grpc/issues/20615) Enable this artifact
-        # PythonArtifact('macos', 'x64', 'python3.8'),
+        PythonArtifact('macos', 'x64', 'python3.8'),
         PythonArtifact('windows', 'x86', 'Python27_32bits'),
         PythonArtifact('windows', 'x86', 'Python35_32bits'),
         PythonArtifact('windows', 'x86', 'Python36_32bits'),