diff --git a/src/feed.11ty.liquid b/src/feed.11ty.liquid
index 875d29e1..96b8069d 100644
--- a/src/feed.11ty.liquid
+++ b/src/feed.11ty.liquid
@@ -13,7 +13,7 @@ permalink: '/feed.json'
   "id": "{{ site.url }}{{ item.url }}"
   "title": "{{ item.data.title }}",
   "url": "{{ site.url }}{{ item.url }}",
-  "content_html": "{{ item.data.post_excerpt | mdToHtml }}",
+  "content_html": "{{ item.data.post_excerpt | mdToHtml | escape }}",
   "date_published" "{{ item.date | date: "%Y-%m-%dT%H:%M" }}"
   }{% if not forloop.last %},{% endif %}
 {% endfor %}
diff --git a/src/follow.11ty.liquid b/src/follow.11ty.liquid
index 449a026b..c5379cd8 100644
--- a/src/follow.11ty.liquid
+++ b/src/follow.11ty.liquid
@@ -13,7 +13,7 @@ permalink: '/follow.json'
   "id": "{{ item.id }}",
   "title": "{{ item.title }}",
   "url": "{{ item.url }}",
-  "content_html": "{{ item.content_html | mdToHtml }}",
+  "content_html": "{{ item.content_html | mdToHtml | escape }}",
   "date_published": "{{ item.date_published | date: "%Y-%m-%dT%H:%M" }}"
   }{% if not forloop.last %},{% endif %}
 {% endfor %}