diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 64b04fc..0b03120 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -26,6 +26,10 @@ jobs:
     strategy:
       matrix:
         python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        sphinx-version: ['6.*', '7.*', '7.1.*', '7.2.*']
+        exclude:
+          - python-version: '3.8'
+            sphinx-version: '7.1.*'
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
@@ -36,6 +40,7 @@ jobs:
           pip install uv
           uv venv
           uv pip install -r requirements-dev.lock
+          uv pip install 'sphinx==${{ matrix.sphinx-version }}'
       - name: Run tests
         run: |
           source .venv/bin/activate