diff --git a/.circleci/config.yml b/.circleci/config.yml
index 0c0ae62f0a..b7a68f3da3 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -595,8 +595,12 @@ workflows:
       - legacy-unit-tests-saucelabs
     triggers:
       - schedule:
-          # Runs the Saucelabs legacy tests every four hours.
-          cron: "0 0,4,8,12,16,20 * * *"
+          # Runs the Saucelabs legacy tests every hour. We still want to run Saucelabs
+          # frequently as the caretaker needs up-to-date results when merging PRs or creating
+          # a new release. Also we primarily moved the Saucelabs job into a cronjob that doesn't
+          # run for PRs, in order to ensure that PRs are not affected by Saucelabs flakiness or
+          # incidents. This is still guaranteed (even if we run the job every hour).
+          cron: "0 * * * *"
           filters: *publish_branches_filter
 
   aio_monitoring: