diff --git a/web/modules/custom/geo_citation/geo_citation.module b/web/modules/custom/geo_citation/geo_citation.module
index f3399c3..7f54e7b 100644
--- a/web/modules/custom/geo_citation/geo_citation.module
+++ b/web/modules/custom/geo_citation/geo_citation.module
@@ -85,7 +85,7 @@ function geo_citation_pseudo_field($entity) {
   $markup .= '<div class="drum geo-citation">';
 
   $tooltip = t("When citing this article, please use the following format:");
-  $markup .= '<h4 class="title is-4"><abbr title="' . $tooltip . '">' . t("Citations") . '</abbr></h4>';
+  $markup .= '<h5 class="title is-5"><abbr title="' . $tooltip . '">' . t("Citations") . '</abbr></h5>';
 
   $markup .= '<p>';
   $markup .= "$authors ($year).&#8198; $title";