diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index f3ac9f0..25292e3 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -8,12 +8,12 @@ jobs:
       fail-fast: false
       matrix:
         tox:
-          - py38
-          - py310
+          - '3.8'
+          - '3.10'
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
         with:
-          python-version: '3.10'
+          python-version: ${{ matrix.python-version }}
       - run: pip install tox
-      - run: tox -e ${{ matrix.tox }}
+      - run: tox -e py
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 635c93c..c4563b8 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -16,7 +16,7 @@ repos:
         args:
         - -i
         - --ignore=E309,E501
--   repo: https://gitlab.com/pycqa/flake8.git
+-   repo: https://github.com/PyCQA/flake8
     rev: 3.7.6
     hooks:
     -   id: flake8
diff --git a/README.rst b/README.rst
index 1f0167c..e27de3b 100644
--- a/README.rst
+++ b/README.rst
@@ -52,7 +52,7 @@ How to contribute
 
     ::
 
-        tox -e py27    # Note: use py35 for Python 3.5, see tox.ini for possible values
+        tox -e py38    # Note: use py310 for Python 3.10, see tox.ini for possible values
 
 #. Commit patches: http://gitref.org/basic/
 #. Push to github: ``git pull && git push origin``