diff --git a/src/app/pages/blog/blog-list/blog-list.component.html b/src/app/pages/blog/blog-list/blog-list.component.html
index ce8f2d1..be10378 100644
--- a/src/app/pages/blog/blog-list/blog-list.component.html
+++ b/src/app/pages/blog/blog-list/blog-list.component.html
@@ -14,7 +14,7 @@ <h1 i18n>News &amp; Events</h1>
 </div>
 
 <ul class="not news">
-  <li *ngFor="let entry of entries | async">
+  <li *ngFor="let entry of entries | async; trackBy trackBy">
     <app-blog-card *ngIf="!isEvent(entry)" [post]="castPost(entry)" />
     <app-event-card *ngIf="isEvent(entry)" [event]="castEvent(entry)" />
   </li>
diff --git a/src/app/pages/blog/blog-list/blog-list.component.ts b/src/app/pages/blog/blog-list/blog-list.component.ts
index dbce66c..0773704 100644
--- a/src/app/pages/blog/blog-list/blog-list.component.ts
+++ b/src/app/pages/blog/blog-list/blog-list.component.ts
@@ -36,12 +36,13 @@ export class BlogListComponent {
     events: this.blogService.getEventPosts(),
     posts: this.selectedKeywords.pipe(switchMap(keywords => this.blogService.getBlogPosts(keywords)))
   })
-    .pipe(map(({ events, posts }) =>
-    ([...events, ...posts].sort(eventOrPost => {
+    .pipe(map(({ events, posts }) => ([...events, ...posts].sort((a, b) => {
       // @ts-expect-error union type
-      return Date.parse(eventOrPost.published ?? eventOrPost.start_time);
-    }))
-    ));
+      const aDate = Date.parse(a.published ?? a.start_time);
+      // @ts-expect-error union type
+      const bDate = Date.parse(b.published ?? b.start_time);
+      return bDate - aDate;
+    }))));
   protected readonly keywords = this.blogService.getBlogKeywords();
 
   constructor(
@@ -72,4 +73,8 @@ export class BlogListComponent {
   protected castPost(eventOrPost: SmallEvent | SmallBlogPost): SmallBlogPost {
     return eventOrPost as SmallBlogPost;
   }
+
+  protected trackBy(_idx: number, post: SmallEvent | SmallBlogPost): string {
+    return post.slug;
+  }
 }