diff --git a/bookwyrm/templates/book/edit/edit_book.html b/bookwyrm/templates/book/edit/edit_book.html
index 619df2026..da782e3f7 100644
--- a/bookwyrm/templates/book/edit/edit_book.html
+++ b/bookwyrm/templates/book/edit/edit_book.html
@@ -63,7 +63,7 @@
                             {{ isni_match.name }}
                         </label>
                         <p class="help ml-5 mb-2">
-                            <a href="{{ isni_match.uri }}" target="_blank">{{ isni_match.bio }}</a>
+                            <a href="{{ isni_match.uri }}" target="_blank" rel="noopener noreferrer">{{ isni_match.bio }}</a>
                         </p>
                         {% endfor %}
                         {% endif %}