diff --git a/components/GalleryThumbs.vue b/components/GalleryThumbs.vue
index 6eaf221..53cacc8 100644
--- a/components/GalleryThumbs.vue
+++ b/components/GalleryThumbs.vue
@@ -117,11 +117,11 @@ export default {
 
   mounted () {
     window.addEventListener('resize', this.handleResize)
-    this.$refs.galleryThumbsList.addEventListener('touchstart', this.handleTouch)
-    this.$refs.galleryThumbsList.addEventListener('touchend', this.handleTouch)
-    this.$refs.galleryThumbsList.addEventListener('wheel', this.handleThumbsScroll)
+    this.$refs.galleryThumbsList.addEventListener('touchstart', this.handleTouch, { passive: true })
+    this.$refs.galleryThumbsList.addEventListener('touchend', this.handleTouch, { passive: true })
+    this.$refs.galleryThumbsList.addEventListener('wheel', this.handleThumbsScroll, { passive: true })
     // firefox
-    this.$refs.galleryThumbsList.addEventListener('mousewheel', this.handleThumbsScroll)
+    this.$refs.galleryThumbsList.addEventListener('mousewheel', this.handleThumbsScroll, { passive: true })
     this.$nextTick(function () {
       this.updateElements()
       this.scrollToThumb(this.activeIndex)