diff --git a/app/tasks/maintenance/spread_dossier_deletion_task.rb b/app/tasks/maintenance/spread_dossier_deletion_task.rb
index efdcdd83e..2e2f3c6a4 100644
--- a/app/tasks/maintenance/spread_dossier_deletion_task.rb
+++ b/app/tasks/maintenance/spread_dossier_deletion_task.rb
@@ -3,10 +3,11 @@
 module Maintenance
   class SpreadDossierDeletionTask < MaintenanceTasks::Task
     ERROR_OCCURED_AT = Date.new(2024, 2, 14)
+    ERROR_OCCURED_RANGE = ERROR_OCCURED_AT.at_midnight..(ERROR_OCCURED_AT + 1.day)
     SPREAD_DURATION_IN_DAYS = 150
 
     def collection
-      Dossier.where(termine_close_to_expiration_notice_sent_at: ERROR_OCCURED_AT)
+      Dossier.where(termine_close_to_expiration_notice_sent_at: ERROR_OCCURED_RANGE)
         .in_batches
     end
 
diff --git a/spec/tasks/maintenance/spread_dossier_deletion_task_spec.rb b/spec/tasks/maintenance/spread_dossier_deletion_task_spec.rb
index fc84d640c..4a7851a17 100644
--- a/spec/tasks/maintenance/spread_dossier_deletion_task_spec.rb
+++ b/spec/tasks/maintenance/spread_dossier_deletion_task_spec.rb
@@ -6,14 +6,17 @@ module Maintenance
   RSpec.describe SpreadDossierDeletionTask do
     describe "#process" do
       let(:dossiers) { Dossier.all }
-      let(:dossier_1) { create(:dossier, termine_close_to_expiration_notice_sent_at: Date.new(2024, 2, 14)) }
-      let(:dossier_2) { create(:dossier, termine_close_to_expiration_notice_sent_at: Date.new(2024, 2, 14)) }
-      let(:dossier_3) { create(:dossier, termine_close_to_expiration_notice_sent_at: Date.new(2024, 2, 14)) }
-      let(:dossier_4) { create(:dossier, termine_close_to_expiration_notice_sent_at: Date.new(2024, 2, 14)) }
+      before do
+        create(:dossier, termine_close_to_expiration_notice_sent_at: Maintenance::SpreadDossierDeletionTask::ERROR_OCCURED_AT + 1.hour)
+        create(:dossier, termine_close_to_expiration_notice_sent_at: Maintenance::SpreadDossierDeletionTask::ERROR_OCCURED_AT + 2.hours)
+        create(:dossier, termine_close_to_expiration_notice_sent_at: Maintenance::SpreadDossierDeletionTask::ERROR_OCCURED_AT + 3.hours)
+        create(:dossier, termine_close_to_expiration_notice_sent_at: Maintenance::SpreadDossierDeletionTask::ERROR_OCCURED_AT + 4.hours)
+      end
       subject(:process) { described_class.process(dossiers) }
 
       it "works" do
-        expect { subject }.to change { dossier_1.reload.termine_close_to_expiration_notice_sent_at }
+        expect { subject }.to change { Dossier.where(termine_close_to_expiration_notice_sent_at: Maintenance::SpreadDossierDeletionTask::ERROR_OCCURED_RANGE).count }
+          .from(4).to(0)
       end
     end
   end