diff --git a/common/utils/timer/min_heap.go b/common/utils/timer/min_heap.go
index 27edb0ac8..5e875285c 100644
--- a/common/utils/timer/min_heap.go
+++ b/common/utils/timer/min_heap.go
@@ -6,7 +6,6 @@ package timer
 import (
 	"container/heap"
 	"context"
-	"fmt"
 	"sync"
 	"sync/atomic"
 	"time"