diff --git a/.github/workflows/wheel.yml b/.github/workflows/wheel.yml
index d73898c2..770b565a 100644
--- a/.github/workflows/wheel.yml
+++ b/.github/workflows/wheel.yml
@@ -8,7 +8,7 @@ jobs:
   build_wheels:
     strategy:
       matrix:
-        os: [ubuntu-20.04, windows-2022, macos-10.15]
+        os: [ubuntu-22.04, windows-2022, macos-10.15]
     runs-on: ${{ matrix.os }}
     name: Build wheels on ${{ matrix.os }}
 
@@ -35,7 +35,7 @@ jobs:
           make cython
 
       - name: Build
-        uses: pypa/cibuildwheel@v2.6.0
+        uses: pypa/cibuildwheel@v2.9.0
         env:
           CIBW_TEST_REQUIRES: "pytest"
           CIBW_TEST_COMMAND: "pytest {package}/test"
diff --git a/setup.cfg b/setup.cfg
index 1cb6ce36..e3782842 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -22,6 +22,7 @@ classifiers =
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
     Programming Language :: Python :: Implementation :: CPython
     Programming Language :: Python :: Implementation :: PyPy
     Intended Audience :: Developers