diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e5247e7..6b1cef5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        python: ['3.8', '3.9', '3.10', '3.11']
+        python: ['3.8', '3.9', '3.10', '3.11', '3.12']
     runs-on: ${{ matrix.os }}
 
     steps:
diff --git a/pyproject.toml b/pyproject.toml
index 34c68e2..7fab1b9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,11 @@ dynamic = ["version"]
 spark = [
   # In NumPy 1.24.0, np.bool has been removed.
   # https://issues.apache.org/jira/browse/SPARK-41718
-  "pyspark>=3.1; python_version <= '3.11'",
+  "pyspark>=3.1",
+  # setuptools is only necessary because Python 3.12 removed the distutils
+  # package. pyspark 3.5.X still imports this package, so we need it on
+  # Python 3.12 to run the tests.
+  "setuptools",
 ]
 dev = [
   "pre-commit",