diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 925d60d..b9aba63 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -40,7 +40,7 @@ jobs:
     strategy:
       matrix:
         os: [macos-latest, windows-latest, ubuntu-latest]
-        python-version: ["3.8", "3.11"]
+        python-version: ["3.8", "3.12"]
       fail-fast: false
     steps:
       - name: Remove PR label
@@ -113,7 +113,7 @@ jobs:
     runs-on: [self-hosted, linux, x64]
     strategy:
       matrix:
-        python-version: ["3.8", "3.11"]
+        python-version: ["3.8", "3.12"]
       fail-fast: false
     permissions:
       contents: read
diff --git a/noxfile.py b/noxfile.py
index ad3b6c2..2075b87 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -21,8 +21,8 @@
 BLACK_VERSION = "black==22.3.0"
 LINT_PATHS = ["google", "tests", "noxfile.py", "setup.py"]
 
-SYSTEM_TEST_PYTHON_VERSIONS = ["3.8", "3.9", "3.10", "3.11"]
-UNIT_TEST_PYTHON_VERSIONS = ["3.8", "3.9", "3.10", "3.11"]
+SYSTEM_TEST_PYTHON_VERSIONS = ["3.8", "3.9", "3.10", "3.11", "3.12"]
+UNIT_TEST_PYTHON_VERSIONS = ["3.8", "3.9", "3.10", "3.11", "3.12"]
 
 
 @nox.session
diff --git a/setup.py b/setup.py
index 6579609..67bf80e 100644
--- a/setup.py
+++ b/setup.py
@@ -66,6 +66,7 @@
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
     ],
     platforms="Posix; MacOS X; Windows",
     packages=packages,