diff --git a/.github/workflows/docs-build-deploy.yml b/.github/workflows/docs-build-deploy.yml
index bee148d..1a871bf 100644
--- a/.github/workflows/docs-build-deploy.yml
+++ b/.github/workflows/docs-build-deploy.yml
@@ -15,6 +15,8 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - uses: actions/setup-python@v5
+      with:
+        python-version: '3.12'
     - name: Install cats with documentation helpers
       run: python3 -m pip install '.[docs]'
     - name: Build sphinx docs