diff --git a/reasoning_gym/algorithmic/palindrome_generation.py b/reasoning_gym/algorithmic/palindrome_generation.py
index 6d29e425..0ae0cb11 100644
--- a/reasoning_gym/algorithmic/palindrome_generation.py
+++ b/reasoning_gym/algorithmic/palindrome_generation.py
@@ -5,6 +5,7 @@ from typing import Optional
 
 from ..factory import ProceduralDataset, register_dataset
 
+
 @dataclass
 class PalindromeConfig:
     """
@@ -15,6 +16,7 @@ class PalindromeConfig:
     - seed: Optional seed for reproducibility.
     - size: Number of palindrome samples in the virtual dataset.
     """
+
     min_length: int = 3
     max_length: int = 10
     seed: Optional[int] = None
@@ -30,6 +32,7 @@ class PalindromeDataset(ProceduralDataset):
     """
     Generates a set of letters that can be assembled into a palindrome.
     """
+
     def __init__(self, config: PalindromeConfig):
         super().__init__(config=config, seed=config.seed, size=config.size)
 
@@ -50,7 +53,7 @@ class PalindromeDataset(ProceduralDataset):
         palindrome = self._assemble_palindrome(letters)
 
         question_str = (
-           f"Rearrange these letters to form a palindrome (a word, phrase, or sequence that remains the same in reverse): {', '.join(scrambled_letters)}\n\n"
+            f"Rearrange these letters to form a palindrome (a word, phrase, or sequence that remains the same in reverse): {', '.join(scrambled_letters)}\n\n"
             "Example format:\n"
             "racecar\n\n"
             "What is your palindrome?"
diff --git a/tests/test_palindrome.py b/tests/test_palindrome.py
index 3af02379..b5bb18f2 100644
--- a/tests/test_palindrome.py
+++ b/tests/test_palindrome.py
@@ -2,16 +2,18 @@ import pytest
 
 from reasoning_gym.algorithmic.palindrome_generation import PalindromeConfig, PalindromeDataset
 
+
 def test_palindrome_config_validation():
     """Test that invalid configs raise appropriate errors"""
     with pytest.raises(AssertionError):
         config = PalindromeConfig(min_length=0)  # Too short
         config.validate()
-    
+
     with pytest.raises(AssertionError):
         config = PalindromeConfig(min_length=5, max_length=3)  # Invalid range
         config.validate()
 
+
 def test_palindrome_deterministic():
     """Test that dataset generates same items with same seed"""
     config = PalindromeConfig(seed=42, size=10)
@@ -21,6 +23,7 @@ def test_palindrome_deterministic():
     for i in range(len(dataset1)):
         assert dataset1[i] == dataset2[i]
 
+
 def test_palindrome_items():
     """Test basic properties of generated items"""
     config = PalindromeConfig(min_length=3, max_length=7, size=10, seed=42)
@@ -40,14 +43,15 @@ def test_palindrome_items():
         palindrome = item["answer"]
         assert palindrome == palindrome[::-1], f"{palindrome} is not a palindrome"
 
+
 def test_palindrome_randomization():
     """Test letter randomization in the question"""
     config = PalindromeConfig(min_length=4, max_length=4, size=10, seed=42)
     dataset = PalindromeDataset(config)
-    
+
     for item in dataset:
         letters = item["metadata"]["letters"]
         palindrome = item["metadata"]["generated_palindrome"]
-        
+
         # Ensure the same letters are present but in different order
         assert sorted(letters) == sorted(palindrome)