diff --git a/app/jobs/tmp_set_dossiers_last_updated_at_job.rb b/app/jobs/tmp_set_dossiers_last_updated_at_job.rb
index ca0b69997..80c15e043 100644
--- a/app/jobs/tmp_set_dossiers_last_updated_at_job.rb
+++ b/app/jobs/tmp_set_dossiers_last_updated_at_job.rb
@@ -7,7 +7,10 @@ class TmpSetDossiersLastUpdatedAtJob < ApplicationJob
       .limit(100)
 
     dossiers.find_each do |dossier|
-      last_commentaire_updated_at = dossier.commentaires.maximum(:updated_at)
+      last_commentaire_updated_at = dossier.commentaires
+        .where.not(email: OLD_CONTACT_EMAIL)
+        .where.not(email: CONTACT_EMAIL)
+        .maximum(:updated_at)
       last_avis_updated_at = dossier.avis.maximum(:updated_at)
       last_champ_updated_at = dossier.champs.maximum(:updated_at)
       last_champ_private_updated_at = dossier.champs_private.maximum(:updated_at)