diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9d40cf8..132d31f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -27,13 +27,12 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - uses: conda-incubator/setup-miniconda@v2
+      - uses: conda-incubator/setup-miniconda@v3
         with:
           activate-environment: esgf-pyclient
           environment-file: environment.yml
           python-version: ${{ matrix.python-version }}
           miniforge-version: "latest"
-          miniforge-variant: Mambaforge
           use-mamba: true
       - run: conda --version
       - run: python -V