diff --git a/Dockerfile b/Dockerfile
index 2924d6a..e45273a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ ENV GO111MODULE=on
 ENV GOPROXY=https://goproxy.io,direct
 
 # 下载依赖
-RUN go mod download
+RUN go mod tidy
 
 # 复制源代码
 COPY . .