diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index ea690ee0..47fa760b 100644
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -65,6 +65,7 @@ jobs:
         uses: conda-incubator/setup-miniconda@v3
         with:
           miniforge-version: latest
+          python-version: ${{ matrix.python-version }}
           environment-file: continuous_integration/environment.yaml
           activate-environment: test-environment
           channels: conda-forge