diff --git a/.github/workflows/test-sync-old.yml b/.github/workflows/test-sync-old.yml
index c0b7d57..b31c89f 100644
--- a/.github/workflows/test-sync-old.yml
+++ b/.github/workflows/test-sync-old.yml
@@ -9,6 +9,9 @@ on:
 
   pull_request:
 
+  schedule:
+    - cron: '47 0/3 * * *'
+
 jobs:
   sync-test-ubuntu-tsan:
 
diff --git a/.github/workflows/test-sync.yml b/.github/workflows/test-sync.yml
index 8478767..efaa665 100644
--- a/.github/workflows/test-sync.yml
+++ b/.github/workflows/test-sync.yml
@@ -9,6 +9,9 @@ on:
 
   pull_request:
 
+  schedule:
+    - cron: '17 0/3 * * *'
+
 jobs:
   sync-test-ubuntu-tsan: