diff --git a/.github/workflows/stars.yml b/.github/workflows/stars.yml
index 341097e..ae5a1e8 100644
--- a/.github/workflows/stars.yml
+++ b/.github/workflows/stars.yml
@@ -1,7 +1,9 @@
 name: stars
 on:
   schedule:
-    - cron: '17 */2 * * *'
+    # Every ~2.5h (cron can't do half hours, so two interleaved 5-hour schedules)
+    - cron: '17 0-23/5 * * *'
+    - cron: '47 2-23/5 * * *'
   workflow_dispatch:
 permissions:
   contents: write