diff --git a/Dockerfile b/Dockerfile
index 6b15c3714..abbe943d5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,7 +27,7 @@ RUN cd ${TARGET_DIR}/access/frontend && go build -ldflags='-s -w'
 
 
 
-FROM alpine:3.10.3
+FROM alpine:3
 RUN apk add --no-cache ca-certificates tzdata && ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
 
 ENV TARGET_DIR /go/src/github.com/PluralityNET/PluralityServer