diff --git a/.github/workflows/python_ci_linux.yml b/.github/workflows/python_ci_linux.yml
index 978b918..01011e6 100644
--- a/.github/workflows/python_ci_linux.yml
+++ b/.github/workflows/python_ci_linux.yml
@@ -38,7 +38,7 @@ jobs:
           - {python-version: "3.13", testenvs: "py313,build", experimental: False}
           - {python-version: "pypy-3.7", testenvs: "pypy37,build", experimental: False}
           - {python-version: "pypy-3.8", testenvs: "pypy38,build", experimental: False}
-          - {python-version: "pypy-3.9", testenvs: "pypy39,build", experimental: True}
+          - {python-version: "pypy-3.9", testenvs: "pypy39", experimental: True}
 
     steps:
       - name: Checkout 🛎️
@@ -165,7 +165,7 @@ jobs:
         with:
           user: __token__
           password: ${{ secrets.PYPI_TOKEN }}
-          skip_existing: true
+          skip-existing: true
 
       - name: Close milestone 🚪
         if: startsWith(github.ref, 'refs/tags/')
diff --git a/.github/workflows/python_ci_macos.yml b/.github/workflows/python_ci_macos.yml
index f4448f9..2be4b3e 100644
--- a/.github/workflows/python_ci_macos.yml
+++ b/.github/workflows/python_ci_macos.yml
@@ -37,7 +37,7 @@ jobs:
           - {python-version: "3.13", os-ver: "14", testenvs: "py313,build", experimental: False}
           - {python-version: "pypy-3.7", os-ver: "15-intel", testenvs: "pypy37,build", experimental: False}
           - {python-version: "pypy-3.8", os-ver: "14", testenvs: "pypy38,build", experimental: False}
-          - {python-version: "pypy-3.9", os-ver: "14", testenvs: "pypy39,build", experimental: True}
+          - {python-version: "pypy-3.9", os-ver: "14", testenvs: "pypy39", experimental: True}
 
     steps:
       - name: Checkout 🛎️
diff --git a/.gitignore b/.gitignore
index 5de85dd..5088365 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,7 +47,6 @@ docs/_build/
 doc/build
 target/
 .ipynb_checkpoints
-.python-version
 celerybeat-schedule
 celerybeat.pid
 *.sage.py
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 299aaad..a1e562a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -8,7 +8,7 @@ ci:
 
 repos:
  - repo: https://github.com/repo-helper/pyproject-parser
-   rev: v0.13.0
+   rev: v0.14.0
    hooks:
     - id: reformat-pyproject
 
diff --git a/justfile b/justfile
index e8ed871..6a4d335 100644
--- a/justfile
+++ b/justfile
@@ -12,6 +12,9 @@ unused-imports:
 incomplete-defs:
 	tox -e lint -- --select MAN
 
+commas:
+	tox -e lint -- --select C812,C813,C814,C815,C816
+
 vdiff:
 	git diff $(repo-helper show version -q)..HEAD
 
diff --git a/tox.ini b/tox.ini
index 9df411b..2ae56a7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -121,6 +121,8 @@ deps =
     flake8-sphinx-links>=0.0.4
     flake8-strftime>=0.1.1
     flake8-typing-imports>=1.10.0
+    flake8-params>=0.1.0
+    flake8-commas>=2.1.0
     git+https://github.com/domdfcoding/restructuredtext-lint.git@fix-deprecations
     git+https://github.com/domdfcoding/flake8-rst-docstrings-sphinx.git
     git+https://github.com/domdfcoding/flake8-rst-docstrings.git