diff --git a/.github/workflows/ruff.yaml b/.github/workflows/ruff.yaml
index 9ef6d31..8196029 100644
--- a/.github/workflows/ruff.yaml
+++ b/.github/workflows/ruff.yaml
@@ -15,7 +15,7 @@ jobs:
           pip install .
       - name: Format
         run: |
-          ruff format .
+          ruff format . --check
       - name: Lint
         run: |
           ruff check .
\ No newline at end of file
diff --git a/.replit b/.replit
new file mode 100644
index 0000000..35de35d
--- /dev/null
+++ b/.replit
@@ -0,0 +1 @@
+modules = ["python-3.11"]
diff --git a/aoc.py b/aoc.py
index fc93df1..41db9b9 100644
--- a/aoc.py
+++ b/aoc.py
@@ -51,7 +51,9 @@ def run_puzzle(year: int, day: int, part: int, aoc_session_cookie: str) -> None:
     if not os.path.isfile(input_path):
         cookies = {"session": aoc_session_cookie}
         r = requests.get(
-            f"https://adventofcode.com/{year}/day/{day}/input", cookies=cookies, headers=HEADERS
+            f"https://adventofcode.com/{year}/day/{day}/input",
+            cookies=cookies,
+            headers=HEADERS,
         )
         r.raise_for_status()
         input = r.text