diff --git a/reddit_liveupdate/controllers.py b/reddit_liveupdate/controllers.py
index fb81f8c..8494b43 100644
--- a/reddit_liveupdate/controllers.py
+++ b/reddit_liveupdate/controllers.py
@@ -1145,6 +1145,8 @@ def GET_happening_now(self):
         if not is_api():
             self.abort404()
 
+        response.headers["Cache-Control"] = "max-age=300"
+
         featured_event = get_featured_event()
         if not featured_event:
             response.status_code = 204