diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 530238c9..498a663f 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         os: ["ubuntu-latest", "windows-latest", "macos-latest"]
-        py: ["3.13-dev", "3.12", "3.11", "3.10", "3.9", "3.8"]
+        py: ["3.14-dev", "3.13-dev", "3.12", "3.11", "3.10", "3.9", "3.8"]
 
     runs-on: ${{ matrix.os }}
     name: Run test with Python ${{ matrix.py }} on ${{ matrix.os }}
@@ -21,10 +21,17 @@ jobs:
 
       - name: Set up Python
         uses: actions/setup-python@v5
+        if: "!startsWith(matrix.py, '3.14')"
         with:
           python-version: ${{ matrix.py }}
           allow-prereleases: true
           cache: "pip"
+      - name: Set up no-GIL Python
+        uses: deadsnakes/action@v3.1.0
+        if: startsWith(matrix.os, 'ubuntu') && startsWith(matrix.py, '3.14')
+        with:
+          python-version: ${{ matrix.py }}
+          nogil: true
 
       - name: Build
         shell: bash
diff --git a/.github/workflows/wheel.yml b/.github/workflows/wheel.yml
index d57e0586..a6d0a62b 100644
--- a/.github/workflows/wheel.yml
+++ b/.github/workflows/wheel.yml
@@ -23,8 +23,12 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.x"
+          python-version: |
+            3.x
+            3.13
           cache: "pip"
+          allow-prereleases: true
+          check-latest: true
       - name: Cythonize
         shell: bash
         run: |
@@ -32,11 +36,13 @@ jobs:
           make cython
 
       - name: Build
-        uses: pypa/cibuildwheel@v2.17.0
+        uses: pypa/cibuildwheel@v2.19.1
         env:
           CIBW_TEST_REQUIRES: "pytest"
           CIBW_TEST_COMMAND: "pytest {package}/test"
+          CIBW_PRERELEASE_PYTHONS: true
           CIBW_ARCHS_LINUX: auto aarch64
+          CIBW_FREE_THREADED_SUPPORT: true
           CIBW_ARCHS_MACOS: x86_64 universal2 arm64
           CIBW_SKIP: pp*
 
diff --git a/requirements.txt b/requirements.txt
index 1164a941..1017ddd1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,4 @@
 # Also declared in pyproject.toml, if updating here please also update there.
-Cython~=3.0.10
+Cython~=3.0.10; python_version <= '3.12'
+# TODO: bump Cython version when wheels for >=3.13 and no-GIL come out
+Cython @ git+https://github.com/cython/cython; python_version > '3.12'