diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6ae5953..6982204 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -9,6 +9,9 @@ jobs:
   build_doc:
     name: Build CPython documentation
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        version: [3.7, 3.8, 3.9, '3.10', 3.11]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
@@ -32,7 +35,7 @@ jobs:
           --skip-cache-invalidation 
           --theme $(pwd) 
           --language en 
-          --branch 3.11
+          --branch ${{ matrix.version }}
       - name: Upload
         uses: actions/upload-artifact@v3
         with: