diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 4bf8f09..54c1d3e 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -909,6 +909,7 @@ class Event(models.Model):
                 for e in self.other_versions.get_duplicated():
                     if e != self:
                         e.status = self.status
+                        e.set_no_modification_date_changed()
                         e.save()
 
     def from_structure(event_structure, import_source=None):