diff --git a/.github/workflows/update-theme.yml b/.github/workflows/update-theme.yml
index 403252b3b66f..6dac2ca1dca6 100644
--- a/.github/workflows/update-theme.yml
+++ b/.github/workflows/update-theme.yml
@@ -1,7 +1,7 @@
 name: "Scheduled jobs: Update Hugo modules"
 on:
   schedule:
-    - cron:  '*/30 * * * *'
+    - cron:  '*/15 * * * *'
   workflow_dispatch:
 jobs:
   merge: