diff --git a/src/components/Prose.vue b/src/components/Prose.vue
index b2ab164..c367611 100644
--- a/src/components/Prose.vue
+++ b/src/components/Prose.vue
@@ -14,6 +14,7 @@
   h1,
   h2,
   h3,
+  h4,
   p,
   ul,
   blockquote,