diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ecf577b5b..0226f7835 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -70,6 +70,7 @@ jobs:
         pyver: ['3.7', '3.8', '3.9', '3.10', '3.11']
         no-extensions: ['', 'Y']
         os: [ubuntu, macos, windows]
+        experimental: [false]
         exclude:
           - os: macos
             no-extensions: 'Y'
@@ -78,13 +79,24 @@ jobs:
         include:
           - pyver: pypy-3.9
             no-extensions: 'Y'
+            experimental: false
             os: ubuntu
           - pyver: pypy-3.8
             no-extensions: 'Y'
+            experimental: false
+            os: ubuntu
+          - pyver: 3.12-dev
+            no-extensions: ''
+            experimental: true
+            os: ubuntu
+          - pyver: 3.12-dev
+            no-extensions: 'Y'
+            experimental: true
             os: ubuntu
       fail-fast: false
     runs-on: ${{ matrix.os }}-latest
     timeout-minutes: 15
+    continue-on-error: ${{ matrix.experimental }}
     steps:
     - name: Checkout
       uses: actions/checkout@v3
diff --git a/CHANGES/829.bugfix.rst b/CHANGES/829.bugfix.rst
new file mode 100644
index 000000000..6eb30e03b
--- /dev/null
+++ b/CHANGES/829.bugfix.rst
@@ -0,0 +1 @@
+Support Python 3.12 (upgraded cython to 3.0.0b3, provided CI test coverage)
diff --git a/requirements/cython.txt b/requirements/cython.txt
index 5a02e4fc1..3e4e259ce 100644
--- a/requirements/cython.txt
+++ b/requirements/cython.txt
@@ -1 +1 @@
-cython==0.29.35
+cython==3.0.0b3
diff --git a/setup.cfg b/setup.cfg
index 9fbc334f4..da6657d27 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -4,12 +4,15 @@ license_file = LICENSE
 
 [tool:pytest]
 addopts = --cov=yarl -v
-filterwarnings=error
 norecursedirs = dist docs build .tox .eggs venv virtualenv .git
 minversion = 3.8.2
 testpaths = tests/
 junit_suite_name = yarl_test_suite
-
+filterwarnings =
+    error
+    # https://github.com/pytest-dev/pytest/issues/10977 and https://github.com/pytest-dev/pytest/pull/10894
+    ignore:ast\.(Num|NameConstant|Str) is deprecated and will be removed in Python 3\.14; use ast\.Constant instead:DeprecationWarning:_pytest
+    ignore:Attribute s is deprecated and will be removed in Python 3\.14; use value instead:DeprecationWarning:_pytest
 
 [pep8]
 max-line-length=79