diff --git a/.github/workflows/code-check.yml b/.github/workflows/code-check.yml
index bdfcc46..d9e2f04 100644
--- a/.github/workflows/code-check.yml
+++ b/.github/workflows/code-check.yml
@@ -10,31 +10,13 @@ on:
       - "!gh-pages"
 
 jobs:
-  python-format-black:
-    name: Python format [black]
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the code
-        uses: actions/checkout@v3
-
-      - name: Set up Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: "3.10"
-
-      - name: Install black
-        run: |
-          pip install black>=23
-
-      - name: Format
-        run: black --check .
 
   python-lint-ruff:
     name: Python lint [ruff]
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Python
         uses: actions/setup-python@v4
@@ -46,4 +28,7 @@ jobs:
           pip install ruff
 
       - name: Lint
-        run: ruff .
+        run: ruff check .
+
+      - name: Format
+        run: ruff format . --check
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index a5f304b..0eb350b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -84,14 +84,13 @@ omit = ["splito/__init__.py"]
 output = "coverage.xml"
 
 [tool.ruff]
-ignore = [
+lint.ignore = [
     "E501", # Never enforce `E501` (line length violations).
 ]
 line-length = 110
-target-version = "py311"
+target-version = "py310"
 
-[tool.ruff.per-file-ignores]
-"__init__.py" = [
+lint.per-file-ignores."__init__.py" = [
     "F401", # imported but unused
     "E402", # Module level import not at top of file
-]
+]
\ No newline at end of file