diff --git a/cmd/tke-installer/app/installer/installer.go b/cmd/tke-installer/app/installer/installer.go
index 39bae97fa..ba6f8b6f1 100644
--- a/cmd/tke-installer/app/installer/installer.go
+++ b/cmd/tke-installer/app/installer/installer.go
@@ -2600,7 +2600,7 @@ func (t *TKE) dockerPush(tkeImages []string) error {
 		return err
 	}
 
-	manifestsChan := make(chan string, 10)
+	manifestsChan := make(chan string, 1)
 
 	for _, image := range tkeImages {
 		go func(image string) {