diff --git a/core/stores/sqlc/cachedsql.go b/core/stores/sqlc/cachedsql.go
index 9a09802b..10012c4e 100644
--- a/core/stores/sqlc/cachedsql.go
+++ b/core/stores/sqlc/cachedsql.go
@@ -97,7 +97,8 @@ func (cc CachedConn) Exec(exec ExecFn, keys ...string) (sql.Result, error) {
 }
 
 // ExecCtx runs given exec on given keys, and returns execution result.
-func (cc CachedConn) ExecCtx(ctx context.Context, exec ExecCtxFn, keys ...string) (sql.Result, error) {
+func (cc CachedConn) ExecCtx(ctx context.Context, exec ExecCtxFn, keys ...string) (
+	sql.Result, error) {
 	res, err := exec(ctx, cc.db)
 	if err != nil {
 		return nil, err
diff --git a/core/stringx/strings.go b/core/stringx/strings.go
index 384dcf5f..850eaebf 100644
--- a/core/stringx/strings.go
+++ b/core/stringx/strings.go
@@ -103,7 +103,8 @@ func Reverse(s string) string {
 	return string(runes)
 }
 
-// Substr returns runes between start and stop [start, stop) regardless of the chars are ascii or utf8.
+// Substr returns runes between start and stop [start, stop)
+// regardless of the chars are ascii or utf8.
 func Substr(str string, start, stop int) (string, error) {
 	rs := []rune(str)
 	length := len(rs)
diff --git a/tools/goctl/docker/docker.tpl b/tools/goctl/docker/docker.tpl
index 40ef371d..250a9dd4 100644
--- a/tools/goctl/docker/docker.tpl
+++ b/tools/goctl/docker/docker.tpl
@@ -4,6 +4,7 @@ LABEL stage=gobuilder
 
 ENV CGO_ENABLED 0
 {{if .Chinese}}ENV GOPROXY https://goproxy.cn,direct
+RUN sed -i 's/dl-cdn.alpinelinux.org/mirrors.aliyun.com/g' /etc/apk/repositories
 {{end}}{{if .HasTimezone}}
 RUN apk update --no-cache && apk add --no-cache tzdata
 {{end}}