diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 004d6d9..b377ff2 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -43,15 +43,12 @@ jobs:
           key:
             ${{ runner.os }}-conda-py${{ matrix.python-version }}-${{
             hashFiles('ci/requirements/**.yml') }}
-      - uses: conda-incubator/setup-miniconda@v2
+      - uses: mamba-org/setup-micromamba@v1
         with:
-          channels: conda-forge
-          channel-priority: strict
-          mamba-version: "*"
           activate-environment: cmweather-dev
-          auto-update-conda: false
           python-version: ${{ matrix.python-version }}
-          use-only-tar-bz2: true
+          cache-downloads: true
+          environment-file: ci/environment.yml
 
       - name: Install conda dependencies
         run: |