diff --git a/app/topic/routes.py b/app/topic/routes.py
index 0cb366ac..ba992657 100644
--- a/app/topic/routes.py
+++ b/app/topic/routes.py
@@ -91,6 +91,7 @@ def show_topic(topic_name):
 
 
 @bp.route('/topic/<topic_name>.rss', methods=['GET'])
+@cache.cached(timeout=600)
 def show_topic_rss(topic_name):
     topic = Topic.query.filter(Topic.machine_name == topic_name.strip().lower()).first()