diff --git a/.github/workflows/build-subrepos.yml b/.github/workflows/build-subrepos.yml
index 2e13b273a18..a50d56e8ced 100644
--- a/.github/workflows/build-subrepos.yml
+++ b/.github/workflows/build-subrepos.yml
@@ -79,4 +79,5 @@ jobs:
         if: steps.cache.outputs.cache-hit != 'true'
         env:
           CONDA_BLD_PATH: ${{ github.workspace }}/installers-conda/build/conda-bld
+          python_min: '3.9'
         run: python build_conda_pkgs.py --build $pkg