diff --git a/src/anemoi/utils/config.py b/src/anemoi/utils/config.py
index 0d1fa08..09b7441 100644
--- a/src/anemoi/utils/config.py
+++ b/src/anemoi/utils/config.py
@@ -22,14 +22,6 @@
 LOG = logging.getLogger(__name__)
 
 
-class DotList(list):
-    pass
-
-
-class DotTuple(tuple):
-    pass
-
-
 class DotDict(dict):
     """A dictionary that allows access to its keys as attributes.