diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cc11ec7..c006e8f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -46,11 +46,11 @@ jobs:
     - uses: actions/checkout@v3
     - name: Set up Python
       uses: actions/setup-python@v4
+      with:
+        python-version: "3.12"
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
         python -m pip install .[doc]
     - name: Build the documentation
-      run: |
-        python setup.py build
-        make -C doc html man
+      run: make -C doc html man
diff --git a/.readthedocs.yml b/.readthedocs.yml
index da16f14..9fb7c23 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -13,10 +13,6 @@ sphinx:
 
 python:
   install:
-    # Run setup.py first to generate the version.py file. For some reason it
-    # is not generated with `pip install .[doc]`
-    - method: setuptools
-      path: .
     - method: pip
       path: .
       extra_requirements:
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 881d40c..0000000
--- a/setup.py
+++ /dev/null
@@ -1,10 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# tutorials:
-#  - https://packaging.python.org/en/latest/distributing.html
-#  - https://hynek.me/articles/sharing-your-labor-of-love-pypi-quick-and-dirty/
-#  - https://gehrcke.de/2014/02/distributing-a-python-command-line-application/
-
-from setuptools import setup
-
-setup(test_suite="test")