diff --git a/.flake8 b/.flake8
index 90336c4..30b7646 100644
--- a/.flake8
+++ b/.flake8
@@ -1,5 +1,5 @@
 [flake8]
-filename = *.py,*.pyx,*.pxd,*.pxi,*.pyi
+filename = *.py,*.pyi
 ignore = E402,E731,D100,D101,D102,D103,D104,D105,W503,W504,E252
 exclude = .git,__pycache__,build,dist,.eggs,postgres,vendor
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 4a88998..3931bfe 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -14,27 +14,27 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9, 3.10.0-rc.1]
         os: [ubuntu-latest, macos-latest]
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v2
       with:
         fetch-depth: 50
         submodules: true
 
     - name: Check if release PR.
       uses: edgedb/action-release/validate-pr@master
-      continue-on-error: true
       id: release
       with:
         github_token: ${{ secrets.RELEASE_BOT_GITHUB_TOKEN }}
+        missing_version_ok: yes
         version_file: uvloop/_version.py
         version_line_pattern: |
           __version__\s*=\s*(?:['"])([[:PEP440:]])(?:['"])
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       if: steps.release.outputs.version == 0
       with:
         python-version: ${{ matrix.python-version }}
@@ -60,7 +60,7 @@ jobs:
   regression-tests:
     name: "Regression Tests"
     needs: [test]
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
 
     steps:
       - run: echo OK
diff --git a/docs/conf.py b/docs/conf.py
index 0715ee7..5884d0f 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -2,17 +2,22 @@
 
 import alabaster
 import os
-import re
 import sys
 
 sys.path.insert(0, os.path.abspath('..'))
 
-with open(os.path.abspath('../setup.py'), 'rt') as f:
-    _m = re.search(r'''VERSION\s*=\s*(?P<q>'|")(?P<ver>[\d\.]+)(?P=q)''',
-                   f.read())
-    if not _m:
-        raise RuntimeError('unable to read the version from setup.py')
-    version = _m.group('ver')
+version_file = os.path.join(os.path.dirname(os.path.dirname(__file__)),
+                            'uvloop', '_version.py')
+
+with open(version_file, 'r') as f:
+    for line in f:
+        if line.startswith('__version__ ='):
+            _, _, version = line.partition('=')
+            version = version.strip(" \n'\"")
+            break
+    else:
+        raise RuntimeError(
+            'unable to read the version from uvloop/_version.py')
 
 
 # -- General configuration ------------------------------------------------
diff --git a/pytest.ini b/pytest.ini
index 4603e34..fcfb445 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,4 +1,4 @@
 [pytest]
-addopts = --capture=no --assert=plain --strict --tb native
+addopts = --capture=no --assert=plain --strict-markers --tb native
 testpaths = tests
 filterwarnings = default
diff --git a/setup.py b/setup.py
index 07b6758..eceb35d 100644
--- a/setup.py
+++ b/setup.py
@@ -29,18 +29,18 @@ TEST_DEPENDENCIES = [
     # their combination breaks too often
     # (example breakage: https://gitlab.com/pycqa/flake8/issues/427)
     'aiohttp',
-    'flake8~=3.8.4',
+    'flake8~=3.9.2',
     'psutil',
-    'pycodestyle~=2.6.0',
+    'pycodestyle~=2.7.0',
     'pyOpenSSL~=19.0.0',
     'mypy>=0.800',
 ]
 
 # Dependencies required to build documentation.
 DOC_DEPENDENCIES = [
-    'Sphinx~=1.7.3',
-    'sphinxcontrib-asyncio~=0.2.0',
-    'sphinx_rtd_theme~=0.2.4',
+    'Sphinx~=4.1.2',
+    'sphinxcontrib-asyncio~=0.3.0',
+    'sphinx_rtd_theme~=0.5.2',
 ]
 
 EXTRA_DEPENDENCIES = {
@@ -311,6 +311,7 @@ setup(
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
         'License :: OSI Approved :: Apache Software License',
         'License :: OSI Approved :: MIT License',
         'Intended Audience :: Developers',