diff --git a/src/Bundle/ChillCalendarBundle/Resources/views/Calendar/_documents.twig.html b/src/Bundle/ChillCalendarBundle/Resources/views/Calendar/_documents.twig.html
index e05711422..a568ec009 100644
--- a/src/Bundle/ChillCalendarBundle/Resources/views/Calendar/_documents.twig.html
+++ b/src/Bundle/ChillCalendarBundle/Resources/views/Calendar/_documents.twig.html
@@ -3,11 +3,6 @@
 {% import "@ChillDocStore/Macro/macro.html.twig" as m %}
 {% import "@ChillDocStore/Macro/macro_mimeicon.html.twig" as mm %}
 
-<style lang="css">
-
-    --bs-btn-padding-y: .25rem; --bs-btn-padding-x: .5rem; --bs-btn-font-size: .75rem;
-</style>
-
 <div class="accompanying_course_work-list">
     <table class="obj-res-eval my-3">
         <thead>
@@ -24,6 +19,9 @@
                             <li>
                                 {{ mm.mimeIcon(d.storedObject.type) }}
                                 {{ d.storedObject.title }}
+                                {% if d.dateTimeVersion < d.calendar.dateTimeVersion %}
+                                <span class="badge bg-danger">{{ 'chill_calendar.Document outdated'|trans }}</span>
+                                {% endif %}
 
                                 <ul class="record_actions small inline">
                                     {% if chill_document_is_editable(d.storedObject) and is_granted('CHILL_CALENDAR_DOC_EDIT', d) %}
diff --git a/src/Bundle/ChillCalendarBundle/translations/messages.fr.yml b/src/Bundle/ChillCalendarBundle/translations/messages.fr.yml
index 7174e4ff9..4bbf27e7a 100644
--- a/src/Bundle/ChillCalendarBundle/translations/messages.fr.yml
+++ b/src/Bundle/ChillCalendarBundle/translations/messages.fr.yml
@@ -62,6 +62,7 @@ chill_calendar:
     Upload a document: Téléverser un document
     Remove a calendar document: Supprimer un document d'un rendez-vous
     Are you sure you want to remove the doc?: Êtes-vous sûr·e de vouloir supprimer le document associé ?
+    Document outdated: La date et l'heure du rendez-vous ont été modifiés après la création du document
 
 
 remote_ms_graph: