diff --git a/nnpdf_data/nnpdf_data/__init__.py b/nnpdf_data/nnpdf_data/__init__.py
index 341d863d5b..065909a120 100644
--- a/nnpdf_data/nnpdf_data/__init__.py
+++ b/nnpdf_data/nnpdf_data/__init__.py
@@ -1,10 +1,7 @@
-from functools import lru_cache
 import pathlib
 
 import ruamel.yaml as yaml
 
-from ._version import __version__
-
 path_vpdata = pathlib.Path(__file__).parent
 path_commondata = path_vpdata / "commondata"
 
@@ -19,7 +16,6 @@
 }
 
 
-@lru_cache
 def legacy_to_new_map(dataset_name, sys=None):
     """Find the new dataset name and variant corresponding to an old dataset
     and systematics choice"""
@@ -39,7 +35,6 @@ def legacy_to_new_map(dataset_name, sys=None):
     return new_name, variant
 
 
-@lru_cache
 def new_to_legacy_map(dataset_name, variant_used):
     """Loop over the dictionary and find the right dataset.