diff --git a/{{cookiecutter.repo_name}}/.github/workflows/{{cookiecutter._ci_name}}.yaml b/{{cookiecutter.repo_name}}/.github/workflows/{{cookiecutter._ci_name}}.yaml
index 28ad497..c78216c 100644
--- a/{{cookiecutter.repo_name}}/.github/workflows/{{cookiecutter._ci_name}}.yaml
+++ b/{{cookiecutter.repo_name}}/.github/workflows/{{cookiecutter._ci_name}}.yaml
@@ -75,7 +75,7 @@ jobs:
       with:
         version: {{ "${{ matrix.mdanalysis-version }}" }}
         install-tests: false
-        installer: {% if cookiecutter.__dependency_source == 'conda-forge' %} conda {% else %} pip {% endif %}
+        installer: {% if cookiecutter.__dependency_source == 'conda-forge' %} mamba {% else %} pip {% endif %}
         shell: bash {% if cookiecutter.__dependency_source != 'pip' %} -l {0} {% endif %}
       
     - name: Install package