diff --git a/workflows/u/antigravity/git_sync.schedule.yaml b/workflows/u/antigravity/git_sync.schedule.yaml
index cfe2df8..9968012 100644
--- a/workflows/u/antigravity/git_sync.schedule.yaml
+++ b/workflows/u/antigravity/git_sync.schedule.yaml
@@ -10,7 +10,7 @@ on_failure_times: 1
 on_recovery_extra_args: {}
 on_recovery_times: 1
 on_success_extra_args: {}
-schedule: 0 */1 * * * *
+schedule: 0 */30 * * * *
 script_path: u/antigravity/git_sync
 timezone: Asia/Tokyo
 ws_error_handler_muted: false