diff --git a/executor/index_merge_reader.go b/executor/index_merge_reader.go
index b118bc0cb40f8..83ec680b903c5 100644
--- a/executor/index_merge_reader.go
+++ b/executor/index_merge_reader.go
@@ -757,7 +757,7 @@ func handleWorkerPanic(ctx context.Context, finished <-chan struct{}, ch chan<-
 			defer close(ch)
 		}
 		if r == nil {
-			logutil.BgLogger().Info("worker finish without panic", zap.Any("worker", worker))
+			logutil.BgLogger().Debug("worker finish without panic", zap.Any("worker", worker))
 			return
 		}
 
@@ -1073,7 +1073,7 @@ func (w *indexMergeTableScanWorker) pickAndExecTask(ctx context.Context, task **
 func (w *indexMergeTableScanWorker) handleTableScanWorkerPanic(ctx context.Context, finished <-chan struct{}, task **lookupTableTask, worker string) func(r interface{}) {
 	return func(r interface{}) {
 		if r == nil {
-			logutil.BgLogger().Info("worker finish without panic", zap.Any("worker", worker))
+			logutil.BgLogger().Debug("worker finish without panic", zap.Any("worker", worker))
 			return
 		}