diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 23cabab..03c7028 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,39 +10,30 @@ jobs:
         python-version: ["3.9", "3.10"]
     steps:
       - uses: actions/checkout@v2
-      - name: Cache conda
-        uses: actions/cache@v2
-        env:
-          # Increase this value to reset cache if etc/example-environment.yml has not changed
-          CACHE_NUMBER: 0
+      - name: mamba setup enviroment
+      - uses: mamba-org/setup-micromamba@v1.5.6
         with:
-          path: ~/conda_pkgs_dir
-          key:
-            ${{ runner.os }}-conda-${{ env.CACHE_NUMBER }}-${{hashFiles('environment.yml') }}
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: pyglider-test
+          environment-name: test-env
           environment-file: tests/environment.yml
-          python-version: ${{ matrix.python-version }}
-          channel-priority: strict
-          use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
+          create-args: >-
+            python=${{ matrix.python-version }}
       - name: Conda info
-        shell: bash -l {0}
+        shell: micromamba-shell {0}
         run: conda info; conda list
       - name: install pyglider source
-        shell: bash -l {0}
+        shell: micromamba-shell {0}
         run: which pip; pip install -e .
       - name: Process seaexplorer
-        shell: bash -l {0}
+        shell: micromamba-shell {0}
         run: which python; cd tests/example-data/example-seaexplorer; make clean-all; python process_deploymentRealTime.py
       - name: Process slocum
-        shell: bash -l {0}
+        shell: micromamba-shell {0}
         run: which python; cd tests/example-data/example-slocum; make clean-all; python process_deploymentRealTime.py
       - name: Process seaexplorer-legato-flntu-arod-ad2cp
-        shell: bash -l {0}
+        shell: micromamba-shell {0}
         run: which python; cd tests/example-data/example-seaexplorer-legato-flntu-arod-ad2cp; make clean-all; python process_deploymentRealTime.py
       - name: Run tests
-        shell: bash -l {0}
+        shell: micromamba-shell {0}
         run: which python; pytest --cov --cov-report xml
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v3
\ No newline at end of file
+        uses: codecov/codecov-action@v3