diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index bb479ac..76c1d83 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -17,46 +17,39 @@ jobs:
   test:
     if: github.event.pull_request.draft == false
     name: Unit-Test (${{ matrix.os }}, Python ${{ matrix.python-version }})
-    runs-on: ${{ matrix.os }}-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
+        os: ["ubuntu-latest", "macOs-latest"]
         python-version: ["3.9", "3.10"]
-        os: ["ubuntu", "macos"]
-        include:
-          - os: ubuntu
-            environment-file: environment.yml
-            miniforge-variant: Mambaforge
-            miniforge-version: 4.9.2-4
-          - os: macos
-            environment-file: environment.yml
-            miniforge-variant: Mambaforge-pypy3
+
     defaults:
       run:
         shell: bash -l {0}
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: conda-incubator/setup-miniconda@v2
+      - name: Checkout Branch / Pull Request
+        uses: actions/checkout@v3
+
+      - name: Install Mamba
+        uses: mamba-org/setup-micromamba@v1
         with:
           environment-file: ${{ matrix.environment-file }}
-          miniforge-variant: ${{ matrix.miniforge-variant }}
-          miniforge-version: ${{ matrix.miniforge-version }}
-          python-version: ${{ matrix.python-version }}
-          use-mamba: true
+          create-args: >-
+            python=${{ matrix.python-version }}
 
-      - shell: bash -l {0}
-        run: |
-          pip install .
+      - name: Install Package
+        run: python -m pip install -e .
 
-      - shell: bash -l {0}
-        run: |
-          python -m pytest -v --color yes mosdef_gomc/tests --cov
-          coverage xml
-          echo "tests finished"
+      - name: Test (OS -> ${{ matrix.os }} / Python -> ${{ matrix.python-version }})
+        run: python -m pytest -v --cov=mosdef_dihedral_fit --cov-append --cov-config=setup.cfg --color yes --pyargs mosdef_dihedral_fit
 
-      - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@v3
+      - name: Upload Converage Report
+        uses: codecov/codecov-action@v2
+        with:
+          name: mosdef_dihedral_fit-Coverage
+          verbose: true
 
   docker:
     runs-on: 'ubuntu-latest'