diff --git a/Dockerfile b/Dockerfile
index 0647c1e..3696200 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,6 @@ RUN go build -o /app/fonchain-approval/bin/approval cmd/app.go
 
 
 FROM alpine
-RUN apk update --no-cache && apk add --no-cache ca-certificates tzdata
 ENV TZ Asia/Shanghai
 WORKDIR /app/approval
 #通过名称引用