diff --git a/2024/day1/first.py b/2024/day1/part1.py
similarity index 93%
rename from 2024/day1/first.py
rename to 2024/day1/part1.py
index ecf9a8e..839e4ed 100644
--- a/2024/day1/first.py
+++ b/2024/day1/part1.py
@@ -21,7 +21,7 @@ def compute(data_file: Path) -> int:
 
 
 def main():
-    file = Path(__file__).parent / "first-input"
+    file = Path(__file__).parent / "input-data"
     print(compute(file))
 
 
diff --git a/tests/2024/day1/first-data b/tests/2024/day1/test-data
similarity index 100%
rename from tests/2024/day1/first-data
rename to tests/2024/day1/test-data
diff --git a/tests/2024/day1/test_first.py b/tests/2024/day1/test_first.py
index 7f13fd8..90c0408 100644
--- a/tests/2024/day1/test_first.py
+++ b/tests/2024/day1/test_first.py
@@ -1,14 +1,14 @@
 from pathlib import Path
 
-from day1 import first
+from day1 import part1
 
-TEST_FILE = Path(__file__).parent / "first-data"
+TEST_FILE = Path(__file__).parent / "test-data"
 
 
 def test_first():
-    assert first.compute(TEST_FILE) == 11
+    assert part1.compute(TEST_FILE) == 11
 
 
 def test_get_lists():
-    assert first.get_ordered_lists(TEST_FILE)[0] == [1, 2, 3, 3, 3, 4]
-    assert first.get_ordered_lists(TEST_FILE)[1] == [3, 3, 3, 4, 5, 9]
+    assert part1.get_ordered_lists(TEST_FILE)[0] == [1, 2, 3, 3, 3, 4]
+    assert part1.get_ordered_lists(TEST_FILE)[1] == [3, 3, 3, 4, 5, 9]