diff --git a/src/ifcdiff/ifcdiff.py b/src/ifcdiff/ifcdiff.py
index a4f654623a..0f7c01cfc4 100755
--- a/src/ifcdiff/ifcdiff.py
+++ b/src/ifcdiff/ifcdiff.py
@@ -34,7 +34,7 @@ import ifcopenshell.util.placement
 import ifcopenshell.util.classification
 import ifcopenshell.util.representation
 from deepdiff import DeepDiff
-from ordered_set import OrderedSet
+from orderly_set import OrderedSet
 from typing import Optional, Union, Literal, Any