diff --git a/src/core/service/notifications/registry/handler.go b/src/core/service/notifications/registry/handler.go
index d3530f979..d00cb22d5 100644
--- a/src/core/service/notifications/registry/handler.go
+++ b/src/core/service/notifications/registry/handler.go
@@ -111,7 +111,7 @@ func (n *NotificationHandler) Post() {
 				}()
 			}
 
-			if !coreutils.WaitForManifestReady(repository, tag, 5) {
+			if !coreutils.WaitForManifestReady(repository, tag, 6) {
 				log.Errorf("Manifest for image %s:%s is not ready, skip the follow up actions.", repository, tag)
 				return
 			}
diff --git a/src/core/utils/utils.go b/src/core/utils/utils.go
index 5959c4514..3ca570257 100644
--- a/src/core/utils/utils.go
+++ b/src/core/utils/utils.go
@@ -48,14 +48,19 @@ func NewRepositoryClientForUI(username, repository string) (*registry.Repository
 // WaitForManifestReady implements exponential sleeep to wait until manifest is ready in registry.
 // This is a workaround for https://github.com/docker/distribution/issues/2625
 func WaitForManifestReady(repository string, tag string, maxRetry int) bool {
-	// The initial wait interval, hard-coded to 50ms
-	interval := 50 * time.Millisecond
+	// The initial wait interval, hard-coded to 80ms, interval will be 80ms,200ms,500ms,1.25s,3.124999936s
+	interval := 80 * time.Millisecond
 	repoClient, err := NewRepositoryClientForUI("harbor-core", repository)
 	if err != nil {
 		log.Errorf("Failed to create repo client.")
 		return false
 	}
 	for i := 0; i < maxRetry; i++ {
+		if i != 0 {
+			log.Warningf("manifest for image %s:%s is not ready, retry after %v", repository, tag, interval)
+			time.Sleep(interval)
+			interval = time.Duration(int64(float32(interval) * 2.5))
+		}
 		_, exist, err := repoClient.ManifestExist(tag)
 		if err != nil {
 			log.Errorf("Unexpected error when checking manifest existence, image:  %s:%s, error: %v", repository, tag, err)
@@ -64,9 +69,6 @@ func WaitForManifestReady(repository string, tag string, maxRetry int) bool {
 		if exist {
 			return true
 		}
-		log.Warningf("manifest for image %s:%s is not ready, retry after %v", repository, tag, interval)
-		time.Sleep(interval)
-		interval = interval * 2
 	}
 	return false
 }