diff --git a/.github/workflows/run-unit-tests_conda-forge.yml b/.github/workflows/run-unit-tests_conda-forge.yml
index 4c69476..0696b31 100644
--- a/.github/workflows/run-unit-tests_conda-forge.yml
+++ b/.github/workflows/run-unit-tests_conda-forge.yml
@@ -28,7 +28,8 @@ jobs:
         channels: conda-forge
         channel-priority: true
         activate-environment: test
-        mamba-version: "*"
+        miniforge-variant: Mambaforge
+#        mamba-version: "*"
     - name: Install dependencies
       run: |
         mamba info