diff --git a/.github/workflows/update-wpt.yml b/.github/workflows/update-wpt.yml
index 766155b49ec638..82174b2c640ce8 100644
--- a/.github/workflows/update-wpt.yml
+++ b/.github/workflows/update-wpt.yml
@@ -3,7 +3,7 @@ name: WPT update
 on:
   schedule:
     # Run once a week at 12:00 AM UTC on Sunday.
-    - cron: 0 0 * * *
+    - cron: 0 0 * * 0
   workflow_dispatch:
     inputs:
       subsystems: