diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 444c9a7..77154f1 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -260,7 +260,7 @@ class Event(models.Model):
             self.created_date = now
         if self.is_in_importation_process():
             self.imported_date = now
-        if self.modified_date is None:
+        if self.modified_date is None or not self.is_in_importation_process():
             self.modified_date = now