diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7b81ba7..72e306f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -50,23 +50,21 @@ jobs:
         uses: actions/setup-python@v4.3.1
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Install dependencies
+      - name: Install Poetry
         run: |
           python -m pip install --upgrade pip
-          pip install tox tox-gh-actions coverage[toml]
-      - name: Test with tox
-        run: tox
+          pip install poetry==$POETRY_VERSION
+          poetry config virtualenvs.in-project true
+      - name: Install dependencies
+        run: poetry install --no-interaction
+      - name: Test
+        run: poetry run pytest --cov=generic
       - name: Code Climate Coverage Action
         uses: paambaati/codeclimate-action@v3.2.0
         env:
           CC_TEST_REPORTER_ID: f9441442730130d385df69241a779ac3b663756ed21881179826e3fab7e01924
         with:
-          coverageCommand: coverage xml
-      - name: Install Poetry (release only)
-        if: github.event_name == 'release' && matrix.python-version == '3.11'
-        run: |
-          python -m pip install --upgrade pip
-          pip install poetry==$POETRY_VERSION
+          coverageCommand: poetry run coverage xml
       - name: Build (release only)
         if: github.event_name == 'release' && matrix.python-version == '3.11'
         run: poetry build
diff --git a/pyproject.toml b/pyproject.toml
index 09fcd90..4327e60 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,47 +36,10 @@ furo = { version = "^2022", optional = true }
 [tool.poetry.dev-dependencies]
 pytest = "^7.2"
 pytest-cov = "^4.0"
-tox = "^4.0"
 
 [tool.poetry.extras]
 docs = [ "sphinx", "furo" ]
 
-[tool.tox]
-legacy_tox_ini = """
-[tox]
-isolated_build = true
-envlist = clean, py38, py39, py310, py311, report
-
-[gh-actions]
-python =
-    3.8: py38
-    3.9: py39
-    3.10: py310
-    3.11: py311
-
-[testenv]
-commands =
-    pytest --cov --cov-append --cov-report=term-missing {posargs}
-deps =
-    pytest
-    pytest-cov
-depends =
-    {py38,py39,py310,py311}: clean
-    report: py38,py39,py310,py311
-
-[testenv:report]
-deps = coverage[toml]
-skip_install = true
-commands =
-    coverage report
-    coverage html
-
-[testenv:clean]
-deps = coverage[toml]
-skip_install = true
-commands = coverage erase
-"""
-
 [tool.pytest.ini_options]
 testpaths = [
     "tests",