diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index a70ad44d..b8ba1d45 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -1,47 +1,39 @@
-name: Pull Request Action
+name: Regression Testing
 
 on:
   pull_request:
     branches: [ master ]
+  push:
+    branches: [ master, feature/tox ]
 
 jobs:
-  getchange:
-    runs-on: ubuntu-latest
-    outputs:
-      matrix: ${{ steps.changes.outputs.matrix }}
-    steps:
-      - id: changes
-        run: |
-          URL="https://api.github.com/repos/sherlock-project/sherlock/pulls/${{ github.event.pull_request.number }}/files"
-          FILES=$(curl -s -X GET -G $URL | jq -r '.[] | .filename')
-          if echo $FILES | grep -q ".json"; then
-            echo "::set-output name=matrix::{\"include\":[{\"python\":\"3.x\"}]}"
-          else
-            echo "::set-output name=matrix::{\"include\":[{\"python\":\"3.7\"},{\"python\":\"3.8\"}]},{\"python\":\"3.9\"},{\"python\":\"3.10\"}]},{\"python\":\"3.11\"},{\"python\":\"3.12\"}]}"
-          fi
-  tests:
-    needs: [getchange]
-    runs-on: ubuntu-latest
+  regression-testing:
+    runs-on: ${{ matrix.os }}
     strategy:
-      matrix: ${{ fromJson(needs.getchange.outputs.matrix) }}
+      matrix:
+        os: [
+          ubuntu-latest,
+          windows-latest,
+        ]
+        python-version: [
+          '3.8',
+          '3.9',
+          '3.10',
+          '3.11',
+          '3.12',
+          '3.13',
+        ]
 
     steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python ${{ matrix.python }}
-      uses: actions/setup-python@v5
-      with:
-        python-version: ${{ matrix.python }}
-    - name: Install Dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install ruff flake8 pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-    - name: Lint With Ruff
-      run: |
-        # stop the build if there are Python syntax errors or undefined names
-        ruff check . --output-format=github --select=E9,F63,F7,F82
-        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-    - name: Sherlock Site Detect Tests
-      run: |
-        cd sherlock && python -m unittest tests.all.SherlockDetectTests --verbose
+      - uses: actions/checkout@v4
+      - name: Set up environment ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install tox and related dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install tox
+          pip install tox-gh-actions
+      - name: Run tox
+        run: tox
diff --git a/tox.ini b/tox.ini
index d0a5d84d..8b518609 100644
--- a/tox.ini
+++ b/tox.ini
@@ -28,11 +28,11 @@ deps =
 commands =
     ruff check
 
-[gh]
+[gh-actions]
 python =
-    3.13 = py31
-    3.12 = py312
-    3.11 = py311
-    3.10 = py310
-    3.9 = py39
-    3.8 = py38
+    3.13: py31
+    3.12: py312
+    3.11: py311
+    3.10: py310
+    3.9: py39
+    3.8: py38