diff --git a/book/exercises/001.md b/book/exercises/001.md
index fbc0de6..49a8240 100644
--- a/book/exercises/001.md
+++ b/book/exercises/001.md
@@ -27,5 +27,5 @@ Can you add some content to the intro page?
 :::
 
 :::{card} Check your understanding
-<iframe src="https://home.teachbooks.io/wp-admin/admin-ajax.php?action=h5p_embed&id=1" width="959" height="502" frameborder="0" allowfullscreen="allowfullscreen" title="Testing more Teachbooks knowledge"></iframe><script src="https://home.teachbooks.io/wp-content/plugins/h5p/h5p-php-library/js/h5p-resizer.js" charset="UTF-8"></script>
+<iframe src="https://home.teachbooks.io/wp-admin/admin-ajax.php?action=h5p_embed&id=1" width="959" height="502" frameborder="0" allowfullscreen="allowfullscreen" title="Testing more Teachbooks knowledge"></iframe>
 :::
\ No newline at end of file