diff --git a/front/app/src/common/crud/types/date.type.ts b/front/app/src/common/crud/types/date.type.ts
index 06b49fa1..c998b9e9 100644
--- a/front/app/src/common/crud/types/date.type.ts
+++ b/front/app/src/common/crud/types/date.type.ts
@@ -30,7 +30,7 @@ import { FieldType, FieldTypeConfig } from '@ngx-formly/core';
             ngbDatepicker
             #d="ngbDatepicker"
         />
-        <button class="btn btn-outline-secondary bi bi-calendar3" (click)="d.toggle()" type="button"></button>
+        <button class="btn btn-outline-secondary" (click)="d.toggle()" type="button"><i-bs name="calendar-date-fill"></i-bs></button>
     </div>
     <div class="input-group" *ngIf="this.field.props.readonly">
         <input class="form-control" value="{{ this.datetime.toLocaleString() }}" disabled=""/>