diff --git a/assets/js/_main.js b/assets/js/_main.js
index 82e11944..0efc9702 100644
--- a/assets/js/_main.js
+++ b/assets/js/_main.js
@@ -83,7 +83,7 @@ $(document).ready(function() {
 
   // add lightbox class to all image links
   $(
-    "a[href$='.jpg'],a[href$='.jpeg'],a[href$='.JPG'],a[href$='.png'],a[href$='.gif']"
+    "a[href$='.jpg'],a[href$='.jpeg'],a[href$='.JPG'],a[href$='.png'],a[href$='.gif'],a[href$='.webp']"
   ).addClass("image-popup");
 
   // Magnific-Popup options