diff --git a/Utils.py b/Utils.py
index 2dc5ab3b..645b4562 100644
--- a/Utils.py
+++ b/Utils.py
@@ -15,6 +15,7 @@ class Version(typing.NamedTuple):
 __version__ = "0.1.0"
 _version_tuple = tuplize_version(__version__)
 
+import builtins
 import os
 import subprocess
 import sys
@@ -378,11 +379,6 @@ safe_builtins = {
     'frozenset',
 }
 
-safe_builtins = {
-    'set',
-    'frozenset',
-}
-
 
 class RestrictedUnpickler(pickle.Unpickler):
     def find_class(self, module, name):