diff --git a/Dockerfile b/Dockerfile
index c610155..d9e2b46 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # 基础镜像
-FROM alpine:3.15.3
+FROM alpine:3.15.4
 
 # 作者信息
 LABEL MAINTAINER="xiaoqidun@gmail.com"