diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 5fea4c0..38cc12f 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -15,6 +15,7 @@ jobs:
           - "3.8"
           - "3.9"
           - "3.10"
+          - "3.11"
     name: Python ${{ matrix.python-version }} pytest
     steps:
       - uses: actions/checkout@v2
diff --git a/test_requirements.in b/test_requirements.in
index ea397ad..4a49ec0 100644
--- a/test_requirements.in
+++ b/test_requirements.in
@@ -14,6 +14,7 @@ lxml
 mypy
 pip
 pip-tools
+py
 Pygments
 pylint
 pytest
diff --git a/test_requirements.txt b/test_requirements.txt
index 7c1b1f1..90f5c2a 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -104,6 +104,8 @@ platformdirs==2.6.0
     #   pylint
 pluggy==1.0.0
     # via pytest
+py==1.11.0
+    # via -r test_requirements.in
 pycodestyle==2.10.0
     # via flake8
 pydantic==1.10.2