diff --git a/sync/sync_test.go b/sync/sync_test.go
index c6c8505..cc4b099 100644
--- a/sync/sync_test.go
+++ b/sync/sync_test.go
@@ -37,7 +37,7 @@ func TestSyncSimpleRequestingHead(t *testing.T) {
 		headertest.NewDummySubscriber(),
 		WithBlockTime(time.Second*30),
 		WithRecencyThreshold(time.Second*35), // add 5 second buffer
-		WithTrustingPeriod(10*time.Millisecond),
+		WithTrustingPeriod(100*time.Millisecond),
 	)
 	require.NoError(t, err)
 	err = syncer.Start(ctx)