diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 4beb03ef..426f1470 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -139,11 +139,25 @@ jobs:
             mingw-w64-${{matrix.env}}-python
             mingw-w64-${{matrix.env}}-python-pip
             mingw-w64-${{matrix.env}}-python-tox
+            mingw-w64-${{matrix.env}}-cc
             git
+      - name: Install Dependencies
+        shell: msys2 {0}
+        run: |
+          export VIRTUALENV_NO_SETUPTOOLS=1
+
+          python -m venv venv
+          source venv/bin/activate
+
+          # python-ruff doesn't work without rust
+          sed -i '/pytest-ruff/d' setup.cfg
+
+          pip install -e .[testing]
       - name: Run tests
         shell: msys2 {0}
         run: |
-          tox
+          source venv/bin/activate
+          pytest
 
   ci_setuptools:
     # Integration testing with setuptools