diff --git a/Dockerfile b/Dockerfile
index 9530b85..4285311 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20-alpine AS build
+FROM golang:1.21-alpine AS build
 RUN apk update && apk add upx
 WORKDIR /app
 COPY main.go go.mod go.sum .
diff --git a/README.md b/README.md
index 0cea0be..69667f5 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # MyUrls
 
-基于 Go 1.20 与 Redis 实现的本地短链接服务，用于缩短请求链接与短链接还原。
+基于 Go 1.21 与 Redis 实现的本地短链接服务，用于缩短请求链接与短链接还原。
 
 ## Table of Contents