diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index eb504ea1c..c04224fb0 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -47,8 +47,9 @@ jobs:
           build_system: 'include'
 
       - name: Setup Conda Environment
-        uses: mamba-org/setup-micromamba@v1.9.0
+        uses: mamba-org/setup-micromamba@v2
         with:
+          micromamba-version: "2.0.2-0"
           environment-file: ./environment.yml
           environment-name: weldx
           init-shell: >-