diff --git a/.github/workflows/test_code.yml b/.github/workflows/test_code.yml
index 164942120..f456132c3 100644
--- a/.github/workflows/test_code.yml
+++ b/.github/workflows/test_code.yml
@@ -35,25 +35,18 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
         with:
-          python-version: 3.9
-          mamba-version: "*"
-          channels: conda-forge,defaults
-          channel-priority: true
-          activate-environment: anaconda-client-env
-      - name: Add conda to system path
-        run: |
-          echo $CONDA/bin >> $GITHUB_PATH
+          python-version: ${{ matrix.python-version }}
+          cache: "pip"
       - name: Install dependencies
         run: |
           make install
-          cd Doc
-          python doxypy.py
+          sudo apt install doxygen
       - name: Test documentation
         run: |
-          cd docs
-          make html
+          doxygen SignalIntegrityLinux
   release_pypi:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
     runs-on: ubuntu-latest
diff --git a/Makefile b/Makefile
index 0c8279923..25e634cfe 100644
--- a/Makefile
+++ b/Makefile
@@ -32,3 +32,4 @@ update:
 
 update-pre:
 	pre-commit autoupdate --bleeding-edge
+