diff --git a/.github/workflows/miniconda.yml b/.github/workflows/miniconda.yml
index df053bcad..d977ae0a8 100644
--- a/.github/workflows/miniconda.yml
+++ b/.github/workflows/miniconda.yml
@@ -19,6 +19,9 @@ jobs:
           - os: macos-latest  
             platform: x32
       fail-fast: false
+    defaults:
+      run:
+        shell: bash -l {0}
 
     steps:
     - uses: actions/checkout@v4
@@ -36,13 +39,11 @@ jobs:
           --channel conda-forge
 
     - name: Install netcdf4-python
-      shell: bash -l {0}
       run: |
         export PATH="${CONDA_PREFIX}/bin:${CONDA_PREFIX}/Library/bin:$PATH" # so setup.py finds nc-config
         python -m pip install -v -e . --no-deps --force-reinstall
 
     - name: Tests
-      shell: bash -l {0}
       run: |
         cd test && python run_all.py
 
@@ -53,6 +54,10 @@ jobs:
         python-version: [ "3.11" ]
         os: [ubuntu-latest]
         platform: [x64]
+    defaults:
+      run:
+        shell: bash -l {0}
+
     steps:
     - uses: actions/checkout@v4
       with:
@@ -69,14 +74,12 @@ jobs:
           --channel conda-forge
 
     - name: Install netcdf4-python with mpi
-      shell: bash -l {0}
       run: |
         export PATH="${CONDA_PREFIX}/bin:${CONDA_PREFIX}/Library/bin:$PATH" # so setup.py finds nc-config
         nc-config --all
         python -m pip install -v -e . --no-build-isolation --no-deps --force-reinstall
 
     - name: Tests
-      shell: bash -l {0}
       run: |
         cd test && python run_all.py
         cd ../examples