diff --git a/Dockerfile b/Dockerfile
index 65682c8..2a1f4c4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 FROM alpine:latest
 ENV TZ=Asia/Shanghai
 USER root
+RUN apk --no-cache add tzdata
 
 # 合并复制指令
 COPY udeskstate /usr/local/bin/