diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index e4b78f26..7497aee3 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -27,11 +27,15 @@ jobs:
       - uses: actions/setup-python@v2
         with:
           python-version: ${{ matrix.python }}
+      - name: Install apt dependencies
+        run: sudo apt-get --yes install apparmor-utils libsasl2-dev python-dev libldap2-dev libssl-dev slapd ldap-utils
+      - name: App armor configuration for slapd
+        run: sudo aa-complain /usr/sbin/slapd
       - uses: actions/cache@v1
         with:
           path: ~/.cache/pip
           key: pip|${{ hashFiles('setup.py') }}|${{ hashFiles('tox.ini') }}
-      - run: pip install tox poetry
+      - run: pip install tox poetry coveralls pyyaml tomli
       - run: tox -e py
   style:
     runs-on: ubuntu-latest
@@ -48,7 +52,7 @@ jobs:
         with:
           path: ~/.cache/pre-commit
           key: pre-commit|${{ hashFiles('.pre-commit-config.yaml') }}
-      - run: pip install tox poetry
+      - run: pip install tox poetry coveralls pyyaml tomli
       - run: tox -e style
   doc:
     runs-on: ubuntu-latest
@@ -61,5 +65,5 @@ jobs:
         with:
           path: ~/.cache/pip
           key: pip|${{ hashFiles('setup.py') }}|${{ hashFiles('tox.ini') }}
-      - run: pip install tox poetry
+      - run: pip install tox poetry coveralls pyyaml tomli
       - run: tox -e doc