diff --git a/reasoning_gym/algorithmic/caesar_cipher.py b/reasoning_gym/algorithmic/caesar_cipher.py
index 9db6beb7..3f7dedd0 100644
--- a/reasoning_gym/algorithmic/caesar_cipher.py
+++ b/reasoning_gym/algorithmic/caesar_cipher.py
@@ -4,8 +4,7 @@ from dataclasses import dataclass
 from random import Random
 from typing import Optional
 
-from reasoning_gym.data import read_data_file
-
+from ..data import read_data_file
 from ..factory import ProceduralDataset, register_dataset