diff --git a/Dockerfile b/Dockerfile
index aad815f..c4eb36b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # 基础镜像
-FROM alpine:3.18.2
+FROM alpine:3.18.3
 
 # 作者信息
 LABEL MAINTAINER="xiaoqidun@gmail.com"
diff --git a/go.mod b/go.mod
index c727b1c..9ee147e 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/xiaoqidun/gocos
 
-go 1.20
+go 1.21
 
 require github.com/tencentyun/cos-go-sdk-v5 v0.7.42