diff --git a/reinstall.sh b/reinstall.sh
index 995f0ca..3ad9f2a 100644
--- a/reinstall.sh
+++ b/reinstall.sh
@@ -212,7 +212,8 @@ add_community_repo_for_alpine() {
     fi
 
     if ! grep -x "http.*/$alpine_ver/community" /etc/apk/repositories; then
-        echo http://dl-cdn.alpinelinux.org/alpine/$alpine_ver/community >>/etc/apk/repositories
+        is_in_china && mirror=mirrors.tuna.tsinghua.edu.cn || mirror=dl-cdn.alpinelinux.org
+        echo https://$mirror/alpine/$alpine_ver/community >>/etc/apk/repositories
     fi
 }
 
diff --git a/trans.sh b/trans.sh
index 0c707a5..9809495 100644
--- a/trans.sh
+++ b/trans.sh
@@ -48,7 +48,8 @@ add_community_repo() {
     fi
 
     if ! grep -x "http.*/$alpine_ver/community" /etc/apk/repositories; then
-        echo http://dl-cdn.alpinelinux.org/alpine/$alpine_ver/community >>/etc/apk/repositories
+        is_in_china && mirror=mirrors.tuna.tsinghua.edu.cn || mirror=dl-cdn.alpinelinux.org
+        echo https://$mirror/alpine/$alpine_ver/community >>/etc/apk/repositories
     fi
 }