diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9d11540ae..7a5ffea22 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -38,8 +38,7 @@ jobs:
       uses: mamba-org/setup-micromamba@v1
       with:
         environment-file: devtools/conda-envs/test_env.yaml
-        channel-priority: "flexible"
-        extra-specs:
+        create-args: >- # beware the >- instead of |, we don't split on newlines but on spaces
           python=${{ matrix.python-version }}
           
     - name: Additional info about the build