diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
new file mode 100644
index 00000000..94d110b3
--- /dev/null
+++ b/.github/workflows/codeql.yml
@@ -0,0 +1,37 @@
+name: "CodeQL"
+on:
+  workflow_dispatch:
+  #push:
+  #  branches: [master]
+  #pull_request:
+  #  branches: [master]
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: ["python"]
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+    
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+        queries: security-and-quality
+    
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v2
+    
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v2
\ No newline at end of file
diff --git a/.github/workflows/python-tox.yml b/.github/workflows/python-tox.yml
deleted file mode 100644
index cfcc42e6..00000000
--- a/.github/workflows/python-tox.yml
+++ /dev/null
@@ -1,65 +0,0 @@
-on: [pull_request, push]
-jobs:
-  build:
-    # Prevent duplicate builds for 'internal' pull requests on existing commits
-    # Credit: https://github.community/t/duplicate-checks-on-push-and-pull-request-simultaneous-event/18012
-    if: github.event.push || github.event.pull_request.head.repo.full_name != github.repository
-    strategy:
-      fail-fast: false
-      matrix:
-        # 2.7, 3.5, and 3.6 run on Windows via AppVeyor
-        python: ["3.7", "3.8", "3.9", "3.10", "3.11"]
-        os: [ubuntu-latest, windows-latest]
-        deps: [base, optional]
-        include:
-          - python: "pypy-2.7"
-            os: ubuntu-latest
-            deps: base
-          - python: "pypy-3.8"
-            os: ubuntu-latest
-            deps: base
-          - python: "2.7"
-            os: ubuntu-latest
-            deps: oldest
-          - python: "3.7"
-            os: ubuntu-latest
-            deps: oldest
-    runs-on: ${{ matrix.os }}
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          submodules: true
-      - if: ${{ matrix.deps == 'base' }}
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python }}
-          cache: pip
-          cache-dependency-path: |
-            requirements.txt
-            requirements-test.txt
-      - if: ${{ matrix.deps == 'optional' }}
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python }}
-          cache: pip
-          cache-dependency-path: |
-            requirements.txt
-            requirements-optional.txt
-            requirements-test.txt
-      - if: ${{ matrix.deps == 'oldest' }}
-        uses: actions/setup-python@v4
-        with:
-          python-version: ${{ matrix.python }}
-          cache: pip
-          cache-dependency-path: |
-            requirements-oldest.txt
-      - if: ${{ matrix.os == 'windows-latest' }}
-        name: Determine environment name for Tox (PowerShell)
-        run: python toxver.py ${{ matrix.python }} ${{ matrix.deps }} >> $env:GITHUB_ENV
-      - if: ${{ matrix.os == 'ubuntu-latest' }}
-        name: Determine environment name for Tox (Bash)
-        run: python toxver.py ${{ matrix.python }} ${{ matrix.deps }} >> $GITHUB_ENV
-      - run: pip install tox
-      - run: tox
-      - if: ${{ always() }}
-        run: python debug-info.py