diff --git a/Dockerfile b/Dockerfile
index 8e2c908..ccb7156 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM alpine:latest
 
 # 安裝必要的工具
-RUN apk add --no-cache --no-check-certificate bash curl sleep
+RUN apk add --no-cache --no-check-certificate bash curl coreutils
     
 COPY entrypoint.sh /entrypoint.sh