diff --git a/src/datajoint/diagram.py b/src/datajoint/diagram.py
index 455a0015a..c4d014ef0 100644
--- a/src/datajoint/diagram.py
+++ b/src/datajoint/diagram.py
@@ -15,7 +15,7 @@
 
 from __future__ import annotations
 
-import copy as copy_module
+import copy
 import functools
 import inspect
 import io
@@ -103,9 +103,9 @@ def __init__(self, source, context=None) -> None:
             self._expanded_nodes = set(source._expanded_nodes)
             self.context = source.context
             self._connection = source._connection
-            self._cascade_restrictions = copy_module.deepcopy(source._cascade_restrictions)
-            self._restrict_conditions = copy_module.deepcopy(source._restrict_conditions)
-            self._restriction_attrs = copy_module.deepcopy(source._restriction_attrs)
+            self._cascade_restrictions = copy.deepcopy(source._cascade_restrictions)
+            self._restrict_conditions = copy.deepcopy(source._restrict_conditions)
+            self._restriction_attrs = copy.deepcopy(source._restriction_attrs)
             super().__init__(source)
             return
 
diff --git a/src/datajoint/settings.py b/src/datajoint/settings.py
index a0a5c12a5..9bcce0201 100644
--- a/src/datajoint/settings.py
+++ b/src/datajoint/settings.py
@@ -37,12 +37,12 @@
 
 from __future__ import annotations
 
+import copy
 import json
 import logging
 import os
 import warnings
 from contextlib import contextmanager
-from copy import deepcopy
 from enum import Enum
 from pathlib import Path
 from typing import Any, Iterator, Literal
@@ -805,14 +805,14 @@ def override(self, **kwargs: Any) -> Iterator["Config"]:
                 if len(key_parts) == 1:
                     key = key_parts[0]
                     if hasattr(self, key):
-                        backup[key_parts] = deepcopy(getattr(self, key))
+                        backup[key_parts] = copy.deepcopy(getattr(self, key))
                         setattr(self, key, value)
                 elif len(key_parts) == 2:
                     group, attr = key_parts
                     if hasattr(self, group):
                         group_obj = getattr(self, group)
                         if hasattr(group_obj, attr):
-                            backup[key_parts] = deepcopy(getattr(group_obj, attr))
+                            backup[key_parts] = copy.deepcopy(getattr(group_obj, attr))
                             setattr(group_obj, attr, value)
 
             yield self