diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 37d6f0f..929afbe 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -2,7 +2,7 @@
 # https://pypi.org/project/tox-gh-actions/
 
 ---
-name: Test the application using Tox.
+name: Test the application.
 
 on:
   - push
@@ -10,22 +10,59 @@ on:
 
 jobs:
   build:
+    name: Testing
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8"]
+        # python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
-      - name: apt update
-        run: sudo apt update
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
+      - name: Install poetry
+        run: pipx install poetry
       - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          python -m pip install tox tox-gh-actions
-      - name: Test with tox
-        run: tox -v
+        run: poetry install
+      - name: Run tests
+        run: poetry run pytest
+        env:
+          COVERAGE_FILE: ".coverage.${{ matrix.python_version }}"
+      - name: Store coverage file
+        uses: actions/upload-artifact@v3
+        with:
+          name: coverage
+          path: .coverage.${{ matrix.python_version }}
+
+
+  coverage:
+    name: Coverage
+    runs-on: ubuntu-latest
+    needs: build
+    permissions:
+      pull-requests: write
+      contents: write
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/download-artifact@v3
+        id: download
+        with:
+          name: 'coverage'
+
+      - name: Coverage comment
+        id: coverage_comment
+        uses: py-cov-action/python-coverage-comment-action@v3
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          MERGE_COVERAGE_FILES: true
+
+      - name: Store Pull Request comment to be posted
+        uses: actions/upload-artifact@v3
+        if: steps.coverage_comment.outputs.COMMENT_FILE_WRITTEN == 'true'
+        with:
+          name: python-coverage-comment-action
+          path: python-coverage-comment-action.txt
diff --git a/.gitignore b/.gitignore
index e8759f0..b4d0b12 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,4 @@ test.sqlite3
 settings.json
 .pytest_cache
 .vscode
+coverage.xml
diff --git a/poetry.lock b/poetry.lock
index 29be576..c0d78ec 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -358,6 +358,20 @@ files = [
 [package.extras]
 test = ["pytest (>=6)"]
 
+[[package]]
+name = "execnet"
+version = "1.9.0"
+description = "execnet: rapid multi-Python deployment"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+files = [
+    {file = "execnet-1.9.0-py2.py3-none-any.whl", hash = "sha256:a295f7cc774947aac58dde7fdc85f4aa00c42adf5d8f5468fc630c1acf30a142"},
+    {file = "execnet-1.9.0.tar.gz", hash = "sha256:8f694f3ba9cc92cab508b152dcfe322153975c29bda272e2fd7f3f00f36e47c5"},
+]
+
+[package.extras]
+testing = ["pre-commit"]
+
 [[package]]
 name = "factory-boy"
 version = "3.2.1"
@@ -942,6 +956,26 @@ pytest = ">=5.4.0"
 docs = ["sphinx", "sphinx-rtd-theme"]
 testing = ["Django", "django-configurations (>=2.0)"]
 
+[[package]]
+name = "pytest-xdist"
+version = "3.3.1"
+description = "pytest xdist plugin for distributed testing, most importantly across multiple CPUs"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "pytest-xdist-3.3.1.tar.gz", hash = "sha256:d5ee0520eb1b7bcca50a60a518ab7a7707992812c578198f8b44fdfac78e8c93"},
+    {file = "pytest_xdist-3.3.1-py3-none-any.whl", hash = "sha256:ff9daa7793569e6a68544850fd3927cd257cc03a7ef76c95e86915355e82b5f2"},
+]
+
+[package.dependencies]
+execnet = ">=1.1"
+pytest = ">=6.2.0"
+
+[package.extras]
+psutil = ["psutil (>=3.0)"]
+setproctitle = ["setproctitle"]
+testing = ["filelock"]
+
 [[package]]
 name = "python-dateutil"
 version = "2.8.2"
@@ -1292,4 +1326,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8.1"
-content-hash = "fd733a59826a0314c13965a59360679214feae545620f75b4c9bc5e6bc964683"
+content-hash = "5124ddae507dc735742cabf924f10727740142438abaa081cd1a239b1c1c2d7a"
diff --git a/pyproject.toml b/pyproject.toml
index 548d383..636463d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -89,7 +89,7 @@ swapper = "^1"
 [tool.poetry.group.dev.dependencies]
 black = "^23"
 bandit = "^1"
-coverage = "^7"#### TODO
+coverage = {extras = ["toml"], version = "^7.2.7"}
 django-debug-toolbar = "^4"
 isort = "^5"
 mypy = "^1" ### TODO
@@ -104,6 +104,7 @@ tox = "^4"
 psycopg2-binary = "^2.9.6"
 django-test-migrations = "^1.3.0"
 factory-boy = "^3.2.1"
+pytest-xdist = "^3.3.1"
 
 [build-system]
 requires = ["poetry-core"]
@@ -135,7 +136,7 @@ profile = "black"
 
 [tool.pytest.ini_options]
 minversion = "7.0"
-addopts = "--reuse-db"
+addopts = "--reuse-db -n auto --cov=notifications"
 norecursedirs = [
     ".git",
     ".github",
@@ -157,3 +158,8 @@ testpaths = [
 ]
 DJANGO_SETTINGS_MODULE = "notifications.tests.settings"
 django_debug_mode = "keep"
+
+[tool.coverage.run]
+relative_files = true
+parallel = true
+branch = true