diff --git a/.github/workflows/unit-tests.yml b/.github/workflows/unit-tests.yml
index 73d46374b..2b3b050f0 100644
--- a/.github/workflows/unit-tests.yml
+++ b/.github/workflows/unit-tests.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8"]
         architecture: ["x64"]
 
     steps:
@@ -31,4 +31,5 @@ jobs:
     - name: Run unit tests with tox
       shell: bash
       run: |
-        tox -v
+        tox -v -e py3,pep8
+
diff --git a/tox.ini b/tox.ini
index a3f8b22ac..20f368a0c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 4.0.2
-envlist = py3,pep8,flake8,cover
+envlist = py3,pep8
 skipsdist = True
 
 [testenv]
@@ -32,5 +32,5 @@ commands = {posargs}
 # E125 is deliberately excluded. See https://github.com/jcrocholl/pep8/issues/126
 # E251 Skipped due to https://github.com/jcrocholl/pep8/issues/301
 
-ignore = E125,E251,W503,W504,E305,E731,E117,W605,F632
+ignore = E125,E251,W503,W504,E305,E731,E117,W605,F632,H401,H405
 exclude =  .venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build,tools