diff --git a/src/app/notes/notes.component.html b/src/app/notes/notes.component.html
index ef8c786..8fb8563 100644
--- a/src/app/notes/notes.component.html
+++ b/src/app/notes/notes.component.html
@@ -21,20 +21,20 @@
 
     <ng-container *ngIf="taille != 0">
         
-        <mat-table [dataSource]="dataSource">
+        <mat-table [dataSource]="dataSource" (matSortChange)="triTableau($event)" matSort matSortActive="{{this.tri}}" matSortDirection="desc">
 
             <ng-container matColumnDef="collaborateur">
-                <mat-header-cell *matHeaderCellDef>Collaborateur</mat-header-cell>
+                <mat-header-cell *matHeaderCellDef mat-sort-header disableClear>Collaborateur</mat-header-cell>
                 <mat-cell *matCellDef="let row">{{ row.collaborateur }}</mat-cell>
             </ng-container>
             
             <ng-container matColumnDef="titre">
-                <mat-header-cell *matHeaderCellDef>Titre</mat-header-cell>
+                <mat-header-cell *matHeaderCellDef mat-sort-header disableClear>Titre</mat-header-cell>
                 <mat-cell *matCellDef="let row">{{ row.titre }}</mat-cell>
             </ng-container>
 
             <ng-container matColumnDef="datemiseajour">
-                <mat-header-cell *matHeaderCellDef>Dernière mise à jour</mat-header-cell>
+                <mat-header-cell *matHeaderCellDef mat-sort-header disableClear>Dernière mise à jour</mat-header-cell>
                 <mat-cell *matCellDef="let row">{{ row.dateMiseAJour | date : 'dd/MM/yyyy à hh:mm'}}</mat-cell>
             </ng-container>
 
diff --git a/src/app/notes/notes.component.ts b/src/app/notes/notes.component.ts
index 9c32ada..d7d459c 100644
--- a/src/app/notes/notes.component.ts
+++ b/src/app/notes/notes.component.ts
@@ -14,13 +14,13 @@ export class NotesComponent implements OnInit {
     displayedColumns : string[] = ["collaborateur", "titre", "datemiseajour"]; 
     chargement: boolean = true;
 
-    asc: boolean = true;
+    asc: boolean = false;
 
     numPage: number = 1;
 
     parPage: number = 15;
 
-    tri: string = "";
+    tri: string = "datemiseajour";
 
     search: string = "";
 
@@ -82,6 +82,19 @@ export class NotesComponent implements OnInit {
         this.updateDataSource();
     }
 
+    triTableau(e) {
+        this.tri = e.active;
+        switch(e.direction) {
+            case "asc":
+                this.asc = true;
+                break;
+            case "desc":
+                this.asc = false;
+                break;
+        }
+        this.updateDataSource();
+    }
+
 
     ngOnDestroy() {
         if(this.notesSubscriber != undefined) {