diff --git a/.github/workflows/ruff.yml b/.github/workflows/ruff.yml
index c8a0958..64c1c7a 100644
--- a/.github/workflows/ruff.yml
+++ b/.github/workflows/ruff.yml
@@ -4,5 +4,7 @@ jobs:
   ruff:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: chartboost/ruff-action@v1
\ No newline at end of file
+    - uses: actions/checkout@v4
+    - run: pip install --user ruff
+    - run: ruff check --output-format=github .
+    - run: ruff format --diff .
diff --git a/mokuro/manga_page_ocr.py b/mokuro/manga_page_ocr.py
index abb9ae2..2157bb4 100644
--- a/mokuro/manga_page_ocr.py
+++ b/mokuro/manga_page_ocr.py
@@ -37,7 +37,7 @@ def __init__(
 
         if not self.disable_ocr:
             cuda = torch.cuda.is_available()
-            device = 'cuda' if cuda and not force_cpu else 'cpu'
+            device = "cuda" if cuda and not force_cpu else "cpu"
             logger.info(f"Initializing text detector, using device {device}")
             self.text_detector = TextDetector(
                 model_path=cache.comic_text_detector, input_size=detector_input_size, device=device, act="leaky"