diff --git a/.github/workflows/ci-tests.yml b/.github/workflows/ci-tests.yml
index 453ab5ca..7068842c 100644
--- a/.github/workflows/ci-tests.yml
+++ b/.github/workflows/ci-tests.yml
@@ -71,10 +71,9 @@ jobs:
       uses: conda-incubator/setup-miniconda@v3
       with:
         miniforge-version: latest
-        channels: conda-forge,defaults
+        channels: conda-forge
         activate-environment: ${{ env.ENV_NAME }}
-        auto-update-conda: false
-        use-only-tar-bz2: true
+        auto-update-conda: true
 
     - name: "Conda environment cache"
       id: conda-env-cache