diff --git a/.github/workflows/pytest.yaml b/.github/workflows/pytest.yaml
index 8473cac..c92e2bf 100644
--- a/.github/workflows/pytest.yaml
+++ b/.github/workflows/pytest.yaml
@@ -13,6 +13,11 @@ jobs:
   # ----------------------------------------------------------------------
   unit-test:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        vars: [ { python-version: '3.8', sleep: '0s' }, { python-version: '3.9', sleep: '60s' },
+                { python-version: '3.10', sleep: '120s' }, { python-version: '3.11', sleep: '180s' } ]
+    name: Python ${{ matrix.vars.python-version }} Test
     steps:
       - name: Checkout source code
         uses: actions/checkout@v2
@@ -28,25 +33,43 @@ jobs:
             ${{ runner.os }}-conda-${{ env.CACHE_NUMBER }}-${{
             hashFiles('environment.yml') }}
 
-      - name: Install miniconda
-        uses: conda-incubator/setup-miniconda@v2
+      - name: Install micromamba
+        uses: mamba-org/setup-micromamba@v1
         with:
-          miniconda-version: "latest"
-          mamba-version: "*"
-          use-mamba: true
-          python-version: 3.8
-          activate-environment: base
-          channels: conda-forge,in-core
-          environment-file: environment.yml
-          use-only-tar-bz2: true
-          conda-build-version: "*"
+          create-args: >-
+            python=${{ matrix.vars.python-version }}
+            pytest
+            environment-file: environment.yml
+            generate-run-shell: true
+#          miniconda-version: "latest"
+#          mamba-version: "*"
+#          use-mamba: true
+#          python-version: 3.8
+#          activate-environment: base
+#          channels: conda-forge,in-core
+#          environment-file: environment.yml
+#          use-only-tar-bz2: true
+#          conda-build-version: "*"
+
+      - name: Sleep for ${{ matrix.vars.sleep }} to avoid multiple pytests run concurrently
+        uses: jakejarvis/wait-action@master
+        with:
+          time: ${{ matrix.vars.sleep }}
 
       - name: Run pyincore viz tests with pytest
         run: |
           echo "${{secrets.PYTEST_USER_TOKEN}}" > tests/pyincore_viz/.incorepw
-          $CONDA/bin/pytest --cache-clear -s tests/pyincore_viz/test_pyincore_viz.py --junitxml=test-reports/viz_results.xml
+          python -m pytest tests/pyincore_viz/test_pyincore_viz.py
+          shell: micromamba-shell {0}
+#        run: |
+#          echo "${{secrets.PYTEST_USER_TOKEN}}" > tests/pyincore_viz/.incorepw
+#          $CONDA/bin/pytest --cache-clear -s tests/pyincore_viz/test_pyincore_viz.py --junitxml=test-reports/viz_results.xml
 
       - name: Run analysis viz tests with pytest
         run: |
           echo "${{secrets.PYTEST_USER_TOKEN}}" > tests/pyincore_viz/.incorepw
-          $CONDA/bin/pytest --cache-clear -s tests/pyincore_viz/test_analysis_viz.py --junitxml=test-reports/analysis_results.xml
\ No newline at end of file
+          python -m pytest tests/pyincore_viz/test_analysis_viz.py
+          shell: micromamba-shell {0}
+#        run: |
+#          echo "${{secrets.PYTEST_USER_TOKEN}}" > tests/pyincore_viz/.incorepw
+#          $CONDA/bin/pytest --cache-clear -s tests/pyincore_viz/test_analysis_viz.py --junitxml=test-reports/analysis_results.xml
\ No newline at end of file