diff --git a/src/agenda_culturel/forms.py b/src/agenda_culturel/forms.py
index a72d36d..210e2c7 100644
--- a/src/agenda_culturel/forms.py
+++ b/src/agenda_culturel/forms.py
@@ -13,7 +13,7 @@ class EventForm(ModelForm):
 
     class Meta:
         model = Event
-        exclude = ["possibly_duplicated"]
+        exclude = ["possibly_duplicated", "imported_date", "modified_date"]
         widgets = {
             'start_day': TextInput(attrs={'type': 'date', 'onchange': 'update_datetimes(event);', "onfocus": "this.oldvalue = this.value;"}),
             'start_time': TextInput(attrs={'type': 'time', 'onchange': 'update_datetimes(event);', "onfocus": "this.oldvalue = this.value;"}),