diff --git a/.github/workflows/test-code.yml b/.github/workflows/test-code.yml
index 79775ca..9983bf2 100644
--- a/.github/workflows/test-code.yml
+++ b/.github/workflows/test-code.yml
@@ -7,22 +7,38 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
-  # Use pytest to run tests
-  pytest:
+  run_pytest:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.10.2]
+
     steps:
-      - name: Checkout repo
-        uses: actions/checkout@v4
-      - name: Set up Python
-        uses: actions/setup-python@v4
+      # Checkout code and install miniconda + environment
+      - uses: actions/checkout@v4
+      - uses: mamba-org/setup-micromamba@v1
         with:
-          python-version: "3.10"
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install pytest
-      - name: Install repo
+          init-shell: bash
+          create-args: >-
+            python=${{ matrix.python-version }}
+            pip
+          environment-file: environment.yml
+          environment-name: anglerfish-dev
+
+      # Install Anglerfish
+      - shell: bash -l {0}
+        name: Install Anglerfish
         run: |
           python -m pip install .
-      - name: pytest --> Run tests
-        run: pytest .
+
+      # Install Pytest
+      - shell: bash -l {0}
+        name: Install Pytest
+        run: |
+          python -m pip install pytest
+
+      # Run Pytest
+      - shell: bash -l {0}
+        name: Run Pytest
+        run: |
+          pytest .