diff --git a/.github/workflows/R_CDM_check_hades.yaml b/.github/workflows/R_CDM_check_hades.yaml
index 2addc69..83e28bc 100644
--- a/.github/workflows/R_CDM_check_hades.yaml
+++ b/.github/workflows/R_CDM_check_hades.yaml
@@ -54,6 +54,10 @@ jobs:
       - uses: r-lib/actions/setup-tinytex@v2
 
       - uses: r-lib/actions/setup-pandoc@v2
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
   
       - name: Install system requirements
         if: runner.os == 'Linux'