diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 912986d..0455724 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -59,4 +59,5 @@ jobs:
         run: |
           pwd
           ls
+          mamba install pytest
           bmi-test pymt_dbseabed.bmi:DbSeabedData --config-file=${{github.workspace}}/notebooks/config_file.yaml --root-dir=${{github.workspace}}/notebooks -vvv