diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d1cd618..2de1782 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -27,8 +27,9 @@ jobs:
 
       matrix:
         build-opts:
-          - {python: '3.10', tox: python3.10}
-          - {python: '3.11', tox: python3.11}
+          - {python: '3.10', tox: python3}
+          - {python: '3.11', tox: python3}
+          - {python: '3.12', tox: python3}
           - {python: '3.11', tox: pep8}
           - {python: '3.11', tox: lint}
           - {python: '3.11', tox: mypy}
@@ -57,9 +58,14 @@ jobs:
             xvfb \
             x11-xserver-utils
 
-        sudo python -m pip install -U \
+        python -m pip install -U --user \
             tox
 
+    # This is a curated list of packages to get Qt to work with xvfb in
+    # GitHub actions.  https://github.com/tlambert03/setup-qt-libs
+    - name: Install Qt dependencies
+      uses: tlambert03/setup-qt-libs@v1
+
     - name: Cache SELinux userspace
       uses: actions/cache@v3
       id: cache-userspace
@@ -79,6 +85,9 @@ jobs:
         make CFLAGS="-O2 -pipe -fPIC -Wall -I${{env.SEPOL_SRC}}/include" -C ${{env.CHECKPOLICY_SRC}}
 
     - name: Run test
-      run: tox -e ${{ matrix.build-opts.tox }}
+      run: |
+        # confirm python version
+        python --version
+        python -m tox -e ${{ matrix.build-opts.tox }}
       env:
         LD_LIBRARY_PATH: "${{env.SEPOL_SRC}}/src:${{env.SELINUX_SRC}}/src:${LD_LIBRARY_PATH}"
diff --git a/tox.ini b/tox.ini
index 2e7c6f3..bc4f681 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,12 +15,12 @@ commands        = pycodestyle setools/ setoolsgui/ tests/ tests-gui/ seinfo sein
 setenv          = SETOOLS_COVERAGE = 1
 passenv         = {[testenv]passenv}
 deps            = {[testenv]deps}
-                  coverage>=5.0
+                  coverage>=6.0
 extras          = toml
 commands_pre    = coverage --version
                   coverage erase
                   {[testenv]commands_pre}
-commands        = coverage run -m pytest tests tests-gui
+commands        = coverage run --source=setools,setoolsgui -m pytest tests tests-gui
                   coverage report
 
 [testenv:lint]
@@ -34,7 +34,7 @@ commands        = pylint -E setools setoolsgui tests tests-gui seinfo seinfoflow
 [testenv:mypy]
 deps            = {[testenv]deps}
                   types-setuptools
-                  mypy
+                  mypy>=1.6.0
 commands_pre    = mypy --version
 commands        = mypy -p setools -p setoolsgui -p tests -p tests-gui
                   mypy --scripts-are-modules seinfo seinfoflow sedta sesearch sediff sechecker apol