diff --git a/web/themes/custom/geofresco/src/templates/elements/field--field-subtitle.html.twig b/web/themes/custom/geofresco/src/templates/elements/field--field-subtitle.html.twig
index 35294b2..dcae43e 100644
--- a/web/themes/custom/geofresco/src/templates/elements/field--field-subtitle.html.twig
+++ b/web/themes/custom/geofresco/src/templates/elements/field--field-subtitle.html.twig
@@ -37,5 +37,5 @@
  */
 #}
 {% for item in items %}
-   <h4{{ item.attributes.addClass('subtitle') }}>{{ item.content }}</h4>
+   <h3{{ item.attributes.addClass('subtitle is-4 is-size-3-desktop is-size-2-widescreen') }}>{{ item.content }}</h3>
 {% endfor %}