diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f49d5a54..b994a074 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11"]
+        python-version: ["3.10", "3.11", "3.12"]
 
     steps:
       - name: Set up Python ${{ matrix.python-version }}
diff --git a/HISTORY.rst b/HISTORY.rst
index bbbcaed3..34c82f14 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -2,8 +2,10 @@
 History
 =======
 
-X.Y.Z (YYYY-MM-DD)
+0.3.8 (2024-09-29)
 ------------------
+* Test on Python 3.12 (:pr:`318`)
+* Deprecate Python 3.9 (:pr:`318`)
 * Fix nvcc compilation (:pr:`316`)
 * Workaround numba #5929 (:pr:`312`)
 * Restrict NumPy to less than 2.0.0 (:pr:`313`)
diff --git a/setup.py b/setup.py
index 8866899f..7fef4284 100644
--- a/setup.py
+++ b/setup.py
@@ -13,6 +13,7 @@
     "decorator",
     "numpy >= 1.14.0, != 1.15.3, < 2.0.0",
     "numba >= 0.53.1",
+    "setuptools",
 ]
 
 extras_require = {
@@ -63,9 +64,9 @@
         "License :: OSI Approved :: BSD License",
         "Natural Language :: English",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
     ],
     description="Radio Astronomy Building Blocks",
     extras_require=extras_require,
@@ -77,7 +78,7 @@
     keywords="codex-africanus",
     name="codex-africanus",
     packages=find_packages(),
-    python_requires=">=3.9",
+    python_requires=">=3.10",
     setup_requires=setup_requirements,
     test_suite="tests",
     tests_require=test_requirements,