diff --git a/.github/workflows/publish-docker.yml b/.github/workflows/publish-docker.yml
index d2404cf..a2b5ebb 100644
--- a/.github/workflows/publish-docker.yml
+++ b/.github/workflows/publish-docker.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v1
diff --git a/.github/workflows/publish-package.yml b/.github/workflows/publish-package.yml
index b183d08..5b752ba 100644
--- a/.github/workflows/publish-package.yml
+++ b/.github/workflows/publish-package.yml
@@ -15,9 +15,9 @@ jobs:
         python-version: ['3.8', '3.9', '3.10']
 
     steps:
-    - 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 }}
 
@@ -45,9 +45,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: '3.8'
     - name: Install dependencies
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 9e59bfd..a14d001 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -21,17 +21,15 @@ jobs:
         python-version: ['3.8', '3.9', '3.10']
 
     steps:
-    - 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 dependencies
       run: |
-        python -m pip install --upgrade pip
-        pip install pytest flake8
-        pip install .
+        pip install ".[test]"
 
     - name: Check code style with flake8 (lint)
       run: |
@@ -49,7 +47,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Docker build
         run: docker build -f docker/Dockerfile -t libretranslate .
 
diff --git a/pyproject.toml b/pyproject.toml
index 10b56c2..fb90855 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,7 +55,6 @@ dependencies = [
     "prometheus-client ==0.15.0",
     "polib ==1.1.1",
 ]
-# package_data={'': ['static/*', 'static/**/*', 'templates/*', 'locales/**/meta.json', 'locales/**/**/*.mo']},
 
 [project.scripts]
 libretranslate = "libretranslate.main:main"
@@ -65,8 +64,9 @@ ltmanage = "libretranslate.manage:manage"
 [project.optional-dependencies]
 test = [
     "pytest >=7.2.0",
-    "pytest-runner",
     "pytest-cov",
+    "flake8",
+    # "pytest-runner",
     # "mypy >=1.4.1",
     "types-requests",
 ]
@@ -94,7 +94,7 @@ lint = [
     # "ruff --fix",
 ]
 fmt = [
-    "ruff --fix",
+    "ruff libretranslate scripts --fix",
     # "mypy",
 ]
 test = [
@@ -159,10 +159,11 @@ select = [
 ignore = [
     # "E741",
     # "B008", # do not perform function calls in argument defaults (required for FastAPI afaik)
-    # "E501", # line too long
+    "E501", # line too long
     # "C901", # too complex
-    # "S101", # Use of `assert` detected
-    # "T201", "T203", # remove print and pprint
+    "S101", # Use of `assert` detected
+    "T201", "T203", # remove print and pprint
+    "E402", # Module level import not at top of file
 ]
 
 [tool.ruff.per-file-ignores]
@@ -170,7 +171,7 @@ ignore = [
 
 
 [tool.ruff.mccabe]
-max-complexity = 10
+max-complexity = 12
 
 # [flake8] ignore = E741