diff --git a/.github/workflows/ci-testing.yml b/.github/workflows/ci-testing.yml
index 979b4ca..017f643 100644
--- a/.github/workflows/ci-testing.yml
+++ b/.github/workflows/ci-testing.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10"]
+        python-version: ["3.10", "3.11"]
 
     steps:
     - uses: actions/checkout@v3
diff --git a/setup.cfg b/setup.cfg
index b4083f0..52ab1cd 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,3 +20,6 @@ verbose = 1
 
 [mypy]
 ignore_missing_imports = True
+
+[mypy-requests.packages.urllib3]
+ignore_missing_imports = True
diff --git a/tox.ini b/tox.ini
index 634cf31..904a144 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,14 +18,12 @@ envlist =
     check,
     unit_py3_11,
     unit_py3_10,
-    unit_py3_9,
-    unit_py3_8,
     doc
 
 
 [testenv]
 description =
-    {unit_py3_8,unit_py3_9,unit_py3_10,unit_py3_11}: Unit Test run with basepython set to {basepython}
+    {unit_py3_10,unit_py3_11}: Unit Test run with basepython set to {basepython}
 allowlist_externals =
     bash
     travis-sphinx
@@ -40,8 +38,6 @@ basepython =
     {check,devel,doc}: python3
     unit_py3_11: python3.11
     unit_py3_10: python3.10
-    unit_py3_9: python3.9
-    unit_py3_8: python3.8
     release: python3.10
 passenv =
     *
@@ -50,24 +46,6 @@ deps =
     -r.virtualenv.dev-requirements.txt
 
 
-# Unit Test run with basepython set to 3.8
-[testenv:unit_py3_8]
-setenv =
-    PYTHONPATH={toxinidir}/test
-changedir=test/unit
-commands =
-    {[testenv:unit]commands}
-
-
-# Unit Test run with basepython set to 3.9
-[testenv:unit_py3_9]
-setenv =
-    PYTHONPATH={toxinidir}/test
-changedir=test/unit
-commands =
-    {[testenv:unit]commands}
-
-
 # Unit Test run with basepython set to 3.10
 [testenv:unit_py3_10]
 setenv =
@@ -99,7 +77,7 @@ deps = {[testenv]deps}
 changedir=test/unit
 commands =
     bash -c 'cd ../../ && ./setup.py develop'
-    bash -c 'cd ../../ && mypy kiwi_boxed_plugin'
+    bash -c 'cd ../../ && mypy --install-types --non-interactive kiwi_boxed_plugin'
     pytest --doctest-modules --no-cov-on-fail --cov=kiwi_boxed_plugin \
         --cov-report=term-missing --cov-fail-under=100 \
         --cov-config .coveragerc {posargs}