diff --git a/src/blenderbim/blenderbim/bim/export_ifc.py b/src/blenderbim/blenderbim/bim/export_ifc.py
index aee40eb7b7..77ed7eaa50 100644
--- a/src/blenderbim/blenderbim/bim/export_ifc.py
+++ b/src/blenderbim/blenderbim/bim/export_ifc.py
@@ -74,7 +74,7 @@ class IfcExporter:
     def set_header(self):
         self.file.wrapped_data.header.file_name.name = os.path.basename(self.ifc_export_settings.output_file)
         self.file.wrapped_data.header.file_name.time_stamp = (
-            datetime.datetime.now(datetime.UTC)
+            datetime.datetime.utcnow()
             .replace(tzinfo=datetime.timezone.utc)
             .astimezone()
             .replace(microsecond=0)
diff --git a/src/ifcopenshell-python/ifcopenshell/api/project/create_file.py b/src/ifcopenshell-python/ifcopenshell/api/project/create_file.py
index 988d3f72d4..45ce3d6c6a 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/project/create_file.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/project/create_file.py
@@ -58,7 +58,7 @@ class Usecase:
         self.file = ifcopenshell.file(schema=self.settings["version"])
         self.file.wrapped_data.header.file_name.name = "/dev/null"  # Hehehe
         self.file.wrapped_data.header.file_name.time_stamp = (
-            datetime.datetime.now(datetime.UTC)
+            datetime.datetime.utcnow()
             .replace(tzinfo=datetime.timezone.utc)
             .astimezone()
             .replace(microsecond=0)