diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index e2611ec..17c1e1d 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -92,10 +92,16 @@ jobs:
         run: |
           python containers/convert_artifact_containers_for_apptainer.py
 
+      - name: list installed modules
+        run: |
+          pip list
+          mamba list
+        shell: micromamba-shell {0}
 
       - name: download existing containers
         run: |
           python containers/pull_published_containers.py
+        shell: micromamba-shell {0}
 
       - name: list directory contents
         run: |