diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index f73f067..2d36355 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -10,15 +10,6 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  lint:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
-        with:
-          python-version: "3.10"
-      - uses: pre-commit/action@v3.0.0
-
   test:
     name: test ${{ matrix.py }} - ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
@@ -26,15 +17,16 @@ jobs:
       fail-fast: false
       matrix:
         py:
+          - "3.11.0-beta.4"
           - "3.10"
-          - "pypy-3.7-v7.3.7"  # ahead to start it earlier because takes longer
+          - "pypy-3.7-v7.3.9"  # ahead to start it earlier because takes longer
           - "3.9"
           - "3.8"
           - "3.7"
         os:
-          - ubuntu-20.04
+          - ubuntu-22.04
           - windows-2022
-          - macos-10.15
+          - macos-12
 
     steps:
       - name: Setup python for tox
@@ -52,16 +44,11 @@ jobs:
           python-version: ${{ matrix.py }}
       - name: Pick environment to run
         run: |
-          import codecs
-          import os
-          import platform
-          import sys
-          cpy = platform.python_implementation() == "CPython"
-          base =("{}{}{}" if cpy else "{}{}").format("py" if cpy else "pypy", *sys.version_info[0:2])
-          env = "TOXENV={}\n".format(base)
-          print("Picked:\n{}for{}".format(env, sys.version))
-          with codecs.open(os.environ["GITHUB_ENV"], "a", "utf-8") as file_handler:
-               file_handler.write(env)
+          import os; import platform; import sys; from pathlib import Path
+          env = f'TOXENV=py{"" if platform.python_implementation() == "CPython" else "py"}3{sys.version_info.minor}'
+          print(f"Picked: {env} for {sys.version} based of {sys.executable}")
+          with Path(os.environ["GITHUB_ENV"]).open("ta") as file_handler:
+              file_handler.write(env)
         shell: python
       - name: Setup test suite
         run: tox -vv --notest
@@ -82,7 +69,7 @@ jobs:
 
   coverage:
     name: Combine coverage
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     needs: test
     steps:
       - uses: actions/checkout@v3
@@ -119,8 +106,8 @@ jobs:
       fail-fast: false
       matrix:
         os:
-          - ubuntu-latest
-          - windows-latest
+          - ubuntu-22.04
+          - windows-2022
         tox_env:
           - dev
           - type
@@ -145,8 +132,8 @@ jobs:
 
   publish:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
-    needs: [ check, coverage, lint ]
-    runs-on: ubuntu-latest
+    needs: [ check, coverage ]
+    runs-on: ubuntu-22.04
     steps:
       - name: Setup python to build package
         uses: actions/setup-python@v4
@@ -160,7 +147,7 @@ jobs:
       - name: Build sdist and wheel
         run: python -m build -s -w . -o dist
       - name: Publish to PyPi
-        uses: pypa/gh-action-pypi-publish@master
+        uses: pypa/gh-action-pypi-publish@v1.5.1
         with:
           skip_existing: true
           user: __token__
diff --git a/src/filelock/main.pdf b/src/filelock/main.pdf
new file mode 100644
index 0000000..72d3411
Binary files /dev/null and b/src/filelock/main.pdf differ
diff --git a/tox.ini b/tox.ini
index 5f0e3a7..47d3914 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,7 @@
 [tox]
 envlist =
     fix_lint
+    py311
     py310
     py39
     py38
@@ -36,7 +37,7 @@ wheel_build_env = .pkg
 description = format the code base to adhere to our styles, and complain about what we cannot do automatically
 passenv =
     *
-basepython = python3.9
+basepython = python3.10
 skip_install = true
 deps =
     pre-commit>=2
@@ -74,6 +75,7 @@ commands =
     coverage html -d {toxworkdir}/htmlcov
     diff-cover --compare-branch {env:DIFF_AGAINST:origin/main} {toxworkdir}/coverage.xml
 depends =
+    py311
     py310
     py39
     py38