diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 13321cf2..f14914a1 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -23,6 +23,8 @@ jobs:
           - '3.8'
     steps:
       - uses: actions/checkout@v3
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
       - uses: actions/setup-python@v3
         with:
           python-version: ${{ matrix.python }}
@@ -40,6 +42,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
       - uses: actions/setup-python@v3
         with:
           python-version: '3.11'
@@ -64,6 +68,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - name: Install Poetry
+        uses: snok/install-poetry@v1
       - uses: actions/setup-python@v3
         with:
           python-version: '3.11'
@@ -74,5 +80,5 @@ jobs:
         run: sudo apt --yes install apparmor-utils libsasl2-dev python3-dev libldap2-dev libssl-dev slapd ldap-utils
       - name: App armor configuration for slapd
         run: sudo aa-complain /usr/sbin/slapd
-      - run: pip install --upgrade tox "poetry>1.3.0" coveralls pyyaml tomli
-      - run: tox -e doc
+      - run: poetry install --only doc
+      - run: poetry run sphinx-build doc build/sphinx/html