diff --git a/backend/internal/data/repo/repo_item_attachments.go b/backend/internal/data/repo/repo_item_attachments.go
index 554baee4..eb6f8391 100644
--- a/backend/internal/data/repo/repo_item_attachments.go
+++ b/backend/internal/data/repo/repo_item_attachments.go
@@ -851,7 +851,7 @@ func (r *AttachmentRepo) processThumbnailFromImage(ctx context.Context, groupId
 	}
 	newWidth, newHeight := calculateThumbnailDimensions(bounds.Dx(), bounds.Dy(), r.thumbnail.Width, r.thumbnail.Height)
 	dst := image.NewRGBA(image.Rect(0, 0, newWidth, newHeight))
-	draw.ApproxBiLinear.Scale(dst, dst.Rect, img, img.Bounds(), draw.Over, nil)
+	draw.CatmullRom.Scale(dst, dst.Rect, img, img.Bounds(), draw.Over, nil)
 
 	buf := new(bytes.Buffer)
 	err := webp.Encode(buf, dst, webp.Options{Quality: 80, Lossless: false})