diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index c3c04f6..caaf647 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -27,13 +27,10 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install flake8 pytest
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-    - name: Lint with flake8
+        python -m pip install -e .[dev] -r requirements.txt
+    - name: Lint with ruff
       run: |
-        # stop the build if there are Python syntax errors or undefined names
-        # flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-        flake8 . --count --max-complexity=14 --max-line-length=127 --show-source --statistics
+        ruff check . --statistics
     # - name: Test with pytest
     #   run: |
     #     pytest
diff --git a/.ruff.toml b/.ruff.toml
new file mode 100644
index 0000000..46121f3
--- /dev/null
+++ b/.ruff.toml
@@ -0,0 +1 @@
+line-length = 127
diff --git a/setup.py b/setup.py
index 1afd97e..fd3debf 100644
--- a/setup.py
+++ b/setup.py
@@ -18,6 +18,11 @@
     license='GPL-3.0',
     packages=find_packages(),
     include_package_data=True,
+    extras_require={
+        'dev': [
+            'ruff',
+        ]
+    },
     install_requires=[
         'Click >= 7.0',
         'beancount >= 2.3.5',