diff --git a/iyuuplus/Dockerfile b/iyuuplus/Dockerfile
index ed127f3..6a9772e 100644
--- a/iyuuplus/Dockerfile
+++ b/iyuuplus/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine
+FROM alpine:3.18.3
 ENV APP_ENV=prod \
     LANG=zh_CN.UTF-8 \
     TZ=Asia/Shanghai \