diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index f7398a5a..10347cd3 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-20.04  # Downgrade Ubuntu to 20.04 to fix missing Python 3.6
     strategy:
       matrix:
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11"]
 
     steps:
     - uses: actions/checkout@v2
diff --git a/setup.py b/setup.py
index 5ee8f8be..50f1f276 100644
--- a/setup.py
+++ b/setup.py
@@ -109,7 +109,6 @@ setup(
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
-        "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: Implementation :: CPython",
     ],
 )